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Finding the Fourth Proportional to 77,240.80, 106,592.88 and 43,706.08

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Solution

The fourth proportional to 77,240.80, 106,592.88 and 43,706.08 is: 60,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240.80 : 106,592.88 = 43,706.08 : x
  2. Step 2: Convert to fraction form
    77,240.80/106,592.88 = 43,706.08/x
  3. Step 3: Cross multiply
    77,240.80x = 106,592.88 × 43,706.08
  4. Step 4: Simplify right side
    77,240.80x = 4,658,756,940.71
  5. Step 5: Solve for x
    x = 4,658,756,940.71/77,240.80
  6. Step 6: Final answer
    x = 60,314.72

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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.