Home / 77,612.18-107,086.10-45,328.48

Finding the Fourth Proportional to 77,612.18, 107,086.10 and 45,328.48

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Solution

The fourth proportional to 77,612.18, 107,086.10 and 45,328.48 is: 62,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.18 : 107,086.10 = 45,328.48 : x
  2. Step 2: Convert to fraction form
    77,612.18/107,086.10 = 45,328.48/x
  3. Step 3: Cross multiply
    77,612.18x = 107,086.10 × 45,328.48
  4. Step 4: Simplify right side
    77,612.18x = 4,854,050,142.13
  5. Step 5: Solve for x
    x = 4,854,050,142.13/77,612.18
  6. Step 6: Final answer
    x = 62,542.38

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Double scale
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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.