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Finding the Fourth Proportional to 86,862.28, 119,869.92 and 47,118.28

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Solution

The fourth proportional to 86,862.28, 119,869.92 and 47,118.28 is: 65,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,862.28 : 119,869.92 = 47,118.28 : x
  2. Step 2: Convert to fraction form
    86,862.28/119,869.92 = 47,118.28/x
  3. Step 3: Cross multiply
    86,862.28x = 119,869.92 × 47,118.28
  4. Step 4: Simplify right side
    86,862.28x = 5,648,064,454.14
  5. Step 5: Solve for x
    x = 5,648,064,454.14/86,862.28
  6. Step 6: Final answer
    x = 65,023.21

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1.5x scale

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.