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Finding the Fourth Proportional to 77,700.59, 107,225.71 and 43,245.10

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Solution

The fourth proportional to 77,700.59, 107,225.71 and 43,245.10 is: 59,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,700.59 : 107,225.71 = 43,245.10 : x
  2. Step 2: Convert to fraction form
    77,700.59/107,225.71 = 43,245.10/x
  3. Step 3: Cross multiply
    77,700.59x = 107,225.71 × 43,245.10
  4. Step 4: Simplify right side
    77,700.59x = 4,636,986,175.34
  5. Step 5: Solve for x
    x = 4,636,986,175.34/77,700.59
  6. Step 6: Final answer
    x = 59,677.62

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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.