Home / 99,008.60-136,639.10-56,566.22

Finding the Fourth Proportional to 99,008.60, 136,639.10 and 56,566.22

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Solution

The fourth proportional to 99,008.60, 136,639.10 and 56,566.22 is: 78,065.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,008.60 : 136,639.10 = 56,566.22 : x
  2. Step 2: Convert to fraction form
    99,008.60/136,639.10 = 56,566.22/x
  3. Step 3: Cross multiply
    99,008.60x = 136,639.10 × 56,566.22
  4. Step 4: Simplify right side
    99,008.60x = 7,729,156,849.42
  5. Step 5: Solve for x
    x = 7,729,156,849.42/99,008.60
  6. Step 6: Final answer
    x = 78,065.51

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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.