Home / 60,785.12-91,220.51-21,345.30

Finding the Fourth Proportional to 60,785.12, 91,220.51 and 21,345.30

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Solution

The fourth proportional to 60,785.12, 91,220.51 and 21,345.30 is: 32,032.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,785.12 : 91,220.51 = 21,345.30 : x
  2. Step 2: Convert to fraction form
    60,785.12/91,220.51 = 21,345.30/x
  3. Step 3: Cross multiply
    60,785.12x = 91,220.51 × 21,345.30
  4. Step 4: Simplify right side
    60,785.12x = 1,947,129,045.38
  5. Step 5: Solve for x
    x = 1,947,129,045.38/60,785.12
  6. Step 6: Final answer
    x = 32,032.99

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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.