Home / 91,781.04-137,673.08-25,220.76

Finding the Fourth Proportional to 91,781.04, 137,673.08 and 25,220.76

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Solution

The fourth proportional to 91,781.04, 137,673.08 and 25,220.76 is: 37,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781.04 : 137,673.08 = 25,220.76 : x
  2. Step 2: Convert to fraction form
    91,781.04/137,673.08 = 25,220.76/x
  3. Step 3: Cross multiply
    91,781.04x = 137,673.08 × 25,220.76
  4. Step 4: Simplify right side
    91,781.04x = 3,472,219,772.19
  5. Step 5: Solve for x
    x = 3,472,219,772.19/91,781.04
  6. Step 6: Final answer
    x = 37,831.56

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1.5x scale

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.