Home / 81,045.15-111,837.75-45,237.46

Finding the Fourth Proportional to 81,045.15, 111,837.75 and 45,237.46

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Solution

The fourth proportional to 81,045.15, 111,837.75 and 45,237.46 is: 62,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,045.15 : 111,837.75 = 45,237.46 : x
  2. Step 2: Convert to fraction form
    81,045.15/111,837.75 = 45,237.46/x
  3. Step 3: Cross multiply
    81,045.15x = 111,837.75 × 45,237.46
  4. Step 4: Simplify right side
    81,045.15x = 5,059,255,817.12
  5. Step 5: Solve for x
    x = 5,059,255,817.12/81,045.15
  6. Step 6: Final answer
    x = 62,425.15

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1.5x scale

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.