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Finding the Fourth Proportional to 85,900.29, 118,542.29 and 48,174.21

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Solution

The fourth proportional to 85,900.29, 118,542.29 and 48,174.21 is: 66,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,900.29 : 118,542.29 = 48,174.21 : x
  2. Step 2: Convert to fraction form
    85,900.29/118,542.29 = 48,174.21/x
  3. Step 3: Cross multiply
    85,900.29x = 118,542.29 × 48,174.21
  4. Step 4: Simplify right side
    85,900.29x = 5,710,680,931.47
  5. Step 5: Solve for x
    x = 5,710,680,931.47/85,900.29
  6. Step 6: Final answer
    x = 66,480.35

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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.