Home / 99,008.60-136,619.28-56,569.88

Finding the Fourth Proportional to 99,008.60, 136,619.28 and 56,569.88

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Solution

The fourth proportional to 99,008.60, 136,619.28 and 56,569.88 is: 78,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,008.60 : 136,619.28 = 56,569.88 : x
  2. Step 2: Convert to fraction form
    99,008.60/136,619.28 = 56,569.88/x
  3. Step 3: Cross multiply
    99,008.60x = 136,619.28 × 56,569.88
  4. Step 4: Simplify right side
    99,008.60x = 7,728,536,275.29
  5. Step 5: Solve for x
    x = 7,728,536,275.29/99,008.60
  6. Step 6: Final answer
    x = 78,059.24

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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.