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Finding the Fourth Proportional to 101,349.96, 139,862 and 56,029.12

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Solution

The fourth proportional to 101,349.96, 139,862 and 56,029.12 is: 77,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,349.96 : 139,862 = 56,029.12 : x
  2. Step 2: Convert to fraction form
    101,349.96/139,862 = 56,029.12/x
  3. Step 3: Cross multiply
    101,349.96x = 139,862 × 56,029.12
  4. Step 4: Simplify right side
    101,349.96x = 7,836,344,781.44
  5. Step 5: Solve for x
    x = 7,836,344,781.44/101,349.96
  6. Step 6: Final answer
    x = 77,319.66

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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.