Home / 91,779.18-137,708.37-35,658.06

Finding the Fourth Proportional to 91,779.18, 137,708.37 and 35,658.06

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Solution

The fourth proportional to 91,779.18, 137,708.37 and 35,658.06 is: 53,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,779.18 : 137,708.37 = 35,658.06 : x
  2. Step 2: Convert to fraction form
    91,779.18/137,708.37 = 35,658.06/x
  3. Step 3: Cross multiply
    91,779.18x = 137,708.37 × 35,658.06
  4. Step 4: Simplify right side
    91,779.18x = 4,910,413,319.96
  5. Step 5: Solve for x
    x = 4,910,413,319.96/91,779.18
  6. Step 6: Final answer
    x = 53,502.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.