Home / 99,660.07-137,531.98-54,337.69

Finding the Fourth Proportional to 99,660.07, 137,531.98 and 54,337.69

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Solution

The fourth proportional to 99,660.07, 137,531.98 and 54,337.69 is: 74,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660.07 : 137,531.98 = 54,337.69 : x
  2. Step 2: Convert to fraction form
    99,660.07/137,531.98 = 54,337.69/x
  3. Step 3: Cross multiply
    99,660.07x = 137,531.98 × 54,337.69
  4. Step 4: Simplify right side
    99,660.07x = 7,473,170,094.33
  5. Step 5: Solve for x
    x = 7,473,170,094.33/99,660.07
  6. Step 6: Final answer
    x = 74,986.60

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1.5x scale

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.