Home / 77,547.20-107,002.24-45,711.68

Finding the Fourth Proportional to 77,547.20, 107,002.24 and 45,711.68

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Solution

The fourth proportional to 77,547.20, 107,002.24 and 45,711.68 is: 63,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,547.20 : 107,002.24 = 45,711.68 : x
  2. Step 2: Convert to fraction form
    77,547.20/107,002.24 = 45,711.68/x
  3. Step 3: Cross multiply
    77,547.20x = 107,002.24 × 45,711.68
  4. Step 4: Simplify right side
    77,547.20x = 4,891,252,154.16
  5. Step 5: Solve for x
    x = 4,891,252,154.16/77,547.20
  6. Step 6: Final answer
    x = 63,074.52

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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.