Home / 91,722.64-126,405.85-71,547.57

Finding the Fourth Proportional to 91,722.64, 126,405.85 and 71,547.57

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Solution

The fourth proportional to 91,722.64, 126,405.85 and 71,547.57 is: 98,601.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,722.64 : 126,405.85 = 71,547.57 : x
  2. Step 2: Convert to fraction form
    91,722.64/126,405.85 = 71,547.57/x
  3. Step 3: Cross multiply
    91,722.64x = 126,405.85 × 71,547.57
  4. Step 4: Simplify right side
    91,722.64x = 9,044,030,411.52
  5. Step 5: Solve for x
    x = 9,044,030,411.52/91,722.64
  6. Step 6: Final answer
    x = 98,601.94

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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.