Home / 99,368.17-137,087.61-56,338.60

Finding the Fourth Proportional to 99,368.17, 137,087.61 and 56,338.60

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Solution

The fourth proportional to 99,368.17, 137,087.61 and 56,338.60 is: 77,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,368.17 : 137,087.61 = 56,338.60 : x
  2. Step 2: Convert to fraction form
    99,368.17/137,087.61 = 56,338.60/x
  3. Step 3: Cross multiply
    99,368.17x = 137,087.61 × 56,338.60
  4. Step 4: Simplify right side
    99,368.17x = 7,723,324,024.75
  5. Step 5: Solve for x
    x = 7,723,324,024.75/99,368.17
  6. Step 6: Final answer
    x = 77,724.33

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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.