Home / 81,565,974.03-112,482,801.72-54,803,824.68

Finding the Fourth Proportional to 81,565,974.03, 112,482,801.72 and 54,803,824.68

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Solution

The fourth proportional to 81,565,974.03, 112,482,801.72 and 54,803,824.68 is: 75,576,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565,974.03 : 112,482,801.72 = 54,803,824.68 : x
  2. Step 2: Convert to fraction form
    81,565,974.03/112,482,801.72 = 54,803,824.68/x
  3. Step 3: Cross multiply
    81,565,974.03x = 112,482,801.72 × 54,803,824.68
  4. Step 4: Simplify right side
    81,565,974.03x = 6,164,487,744,978,082
  5. Step 5: Solve for x
    x = 6,164,487,744,978,082/81,565,974.03
  6. Step 6: Final answer
    x = 75,576,707.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.