Home / 42,853.91-64,151.15-38,905.16

Finding the Fourth Proportional to 42,853.91, 64,151.15 and 38,905.16

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Solution

The fourth proportional to 42,853.91, 64,151.15 and 38,905.16 is: 58,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,853.91 : 64,151.15 = 38,905.16 : x
  2. Step 2: Convert to fraction form
    42,853.91/64,151.15 = 38,905.16/x
  3. Step 3: Cross multiply
    42,853.91x = 64,151.15 × 38,905.16
  4. Step 4: Simplify right side
    42,853.91x = 2,495,810,754.93
  5. Step 5: Solve for x
    x = 2,495,810,754.93/42,853.91
  6. Step 6: Final answer
    x = 58,239.98

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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.