Home / 91,347.72-137,021.40-34,432.26

Finding the Fourth Proportional to 91,347.72, 137,021.40 and 34,432.26

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Solution

The fourth proportional to 91,347.72, 137,021.40 and 34,432.26 is: 51,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,347.72 : 137,021.40 = 34,432.26 : x
  2. Step 2: Convert to fraction form
    91,347.72/137,021.40 = 34,432.26/x
  3. Step 3: Cross multiply
    91,347.72x = 137,021.40 × 34,432.26
  4. Step 4: Simplify right side
    91,347.72x = 4,717,956,470.36
  5. Step 5: Solve for x
    x = 4,717,956,470.36/91,347.72
  6. Step 6: Final answer
    x = 51,648.32

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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.