Home / 42,715.99-64,079.11-17,772.92

Finding the Fourth Proportional to 42,715.99, 64,079.11 and 17,772.92

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Solution

The fourth proportional to 42,715.99, 64,079.11 and 17,772.92 is: 26,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715.99 : 64,079.11 = 17,772.92 : x
  2. Step 2: Convert to fraction form
    42,715.99/64,079.11 = 17,772.92/x
  3. Step 3: Cross multiply
    42,715.99x = 64,079.11 × 17,772.92
  4. Step 4: Simplify right side
    42,715.99x = 1,138,872,575.31
  5. Step 5: Solve for x
    x = 1,138,872,575.31/42,715.99
  6. Step 6: Final answer
    x = 26,661.51

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1.5x scale

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.