Home / 77,521.12-107,011.64-52,404.64

Finding the Fourth Proportional to 77,521.12, 107,011.64 and 52,404.64

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Solution

The fourth proportional to 77,521.12, 107,011.64 and 52,404.64 is: 72,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,521.12 : 107,011.64 = 52,404.64 : x
  2. Step 2: Convert to fraction form
    77,521.12/107,011.64 = 52,404.64/x
  3. Step 3: Cross multiply
    77,521.12x = 107,011.64 × 52,404.64
  4. Step 4: Simplify right side
    77,521.12x = 5,607,906,470.01
  5. Step 5: Solve for x
    x = 5,607,906,470.01/77,521.12
  6. Step 6: Final answer
    x = 72,340.37

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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.