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Finding the Fourth Proportional to 77,019.71, 115,528.65 and 24,429.65

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Solution

The fourth proportional to 77,019.71, 115,528.65 and 24,429.65 is: 36,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019.71 : 115,528.65 = 24,429.65 : x
  2. Step 2: Convert to fraction form
    77,019.71/115,528.65 = 24,429.65/x
  3. Step 3: Cross multiply
    77,019.71x = 115,528.65 × 24,429.65
  4. Step 4: Simplify right side
    77,019.71x = 2,822,324,484.47
  5. Step 5: Solve for x
    x = 2,822,324,484.47/77,019.71
  6. Step 6: Final answer
    x = 36,644.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.