Home / 98,932.04-136,529.70-56,489.80

Finding the Fourth Proportional to 98,932.04, 136,529.70 and 56,489.80

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Solution

The fourth proportional to 98,932.04, 136,529.70 and 56,489.80 is: 77,957.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,932.04 : 136,529.70 = 56,489.80 : x
  2. Step 2: Convert to fraction form
    98,932.04/136,529.70 = 56,489.80/x
  3. Step 3: Cross multiply
    98,932.04x = 136,529.70 × 56,489.80
  4. Step 4: Simplify right side
    98,932.04x = 7,712,535,447.06
  5. Step 5: Solve for x
    x = 7,712,535,447.06/98,932.04
  6. Step 6: Final answer
    x = 77,957.91

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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.