Home / 77,882.42-107,513.62-45,612.55

Finding the Fourth Proportional to 77,882.42, 107,513.62 and 45,612.55

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Solution

The fourth proportional to 77,882.42, 107,513.62 and 45,612.55 is: 62,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,882.42 : 107,513.62 = 45,612.55 : x
  2. Step 2: Convert to fraction form
    77,882.42/107,513.62 = 45,612.55/x
  3. Step 3: Cross multiply
    77,882.42x = 107,513.62 × 45,612.55
  4. Step 4: Simplify right side
    77,882.42x = 4,903,970,581.86
  5. Step 5: Solve for x
    x = 4,903,970,581.86/77,882.42
  6. Step 6: Final answer
    x = 62,966.33

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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.