Home / 99,700.36-137,585.86-54,988.36

Finding the Fourth Proportional to 99,700.36, 137,585.86 and 54,988.36

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Solution

The fourth proportional to 99,700.36, 137,585.86 and 54,988.36 is: 75,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,700.36 : 137,585.86 = 54,988.36 : x
  2. Step 2: Convert to fraction form
    99,700.36/137,585.86 = 54,988.36/x
  3. Step 3: Cross multiply
    99,700.36x = 137,585.86 × 54,988.36
  4. Step 4: Simplify right side
    99,700.36x = 7,565,620,800.59
  5. Step 5: Solve for x
    x = 7,565,620,800.59/99,700.36
  6. Step 6: Final answer
    x = 75,883.59

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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.