Home / 85,722.52-118,296.28-47,997.40

Finding the Fourth Proportional to 85,722.52, 118,296.28 and 47,997.40

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Solution

The fourth proportional to 85,722.52, 118,296.28 and 47,997.40 is: 66,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,722.52 : 118,296.28 = 47,997.40 : x
  2. Step 2: Convert to fraction form
    85,722.52/118,296.28 = 47,997.40/x
  3. Step 3: Cross multiply
    85,722.52x = 118,296.28 × 47,997.40
  4. Step 4: Simplify right side
    85,722.52x = 5,677,913,869.67
  5. Step 5: Solve for x
    x = 5,677,913,869.67/85,722.52
  6. Step 6: Final answer
    x = 66,235.97

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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.