Home / 85,747.20-118,337.40-51,764.04

Finding the Fourth Proportional to 85,747.20, 118,337.40 and 51,764.04

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Solution

The fourth proportional to 85,747.20, 118,337.40 and 51,764.04 is: 71,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,747.20 : 118,337.40 = 51,764.04 : x
  2. Step 2: Convert to fraction form
    85,747.20/118,337.40 = 51,764.04/x
  3. Step 3: Cross multiply
    85,747.20x = 118,337.40 × 51,764.04
  4. Step 4: Simplify right side
    85,747.20x = 6,125,621,907.10
  5. Step 5: Solve for x
    x = 6,125,621,907.10/85,747.20
  6. Step 6: Final answer
    x = 71,438.16

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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.