Home / 85,292.40-127,937.40-38,545.20

Finding the Fourth Proportional to 85,292.40, 127,937.40 and 38,545.20

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Solution

The fourth proportional to 85,292.40, 127,937.40 and 38,545.20 is: 57,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,292.40 : 127,937.40 = 38,545.20 : x
  2. Step 2: Convert to fraction form
    85,292.40/127,937.40 = 38,545.20/x
  3. Step 3: Cross multiply
    85,292.40x = 127,937.40 × 38,545.20
  4. Step 4: Simplify right side
    85,292.40x = 4,931,372,670.48
  5. Step 5: Solve for x
    x = 4,931,372,670.48/85,292.40
  6. Step 6: Final answer
    x = 57,817.26

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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.