Home / 74,428.02-111,392.55-61,100.28

Finding the Fourth Proportional to 74,428.02, 111,392.55 and 61,100.28

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Solution

The fourth proportional to 74,428.02, 111,392.55 and 61,100.28 is: 91,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.02 : 111,392.55 = 61,100.28 : x
  2. Step 2: Convert to fraction form
    74,428.02/111,392.55 = 61,100.28/x
  3. Step 3: Cross multiply
    74,428.02x = 111,392.55 × 61,100.28
  4. Step 4: Simplify right side
    74,428.02x = 6,806,115,994.91
  5. Step 5: Solve for x
    x = 6,806,115,994.91/74,428.02
  6. Step 6: Final answer
    x = 91,445.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.