Home / 42,505.68-63,718.56-14,406.12

Finding the Fourth Proportional to 42,505.68, 63,718.56 and 14,406.12

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Solution

The fourth proportional to 42,505.68, 63,718.56 and 14,406.12 is: 21,595.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,505.68 : 63,718.56 = 14,406.12 : x
  2. Step 2: Convert to fraction form
    42,505.68/63,718.56 = 14,406.12/x
  3. Step 3: Cross multiply
    42,505.68x = 63,718.56 × 14,406.12
  4. Step 4: Simplify right side
    42,505.68x = 917,937,221.59
  5. Step 5: Solve for x
    x = 917,937,221.59/42,505.68
  6. Step 6: Final answer
    x = 21,595.64

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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.