Home / 85,890.17-118,528.25-47,655.54

Finding the Fourth Proportional to 85,890.17, 118,528.25 and 47,655.54

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Solution

The fourth proportional to 85,890.17, 118,528.25 and 47,655.54 is: 65,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,890.17 : 118,528.25 = 47,655.54 : x
  2. Step 2: Convert to fraction form
    85,890.17/118,528.25 = 47,655.54/x
  3. Step 3: Cross multiply
    85,890.17x = 118,528.25 × 47,655.54
  4. Step 4: Simplify right side
    85,890.17x = 5,648,527,520.73
  5. Step 5: Solve for x
    x = 5,648,527,520.73/85,890.17
  6. Step 6: Final answer
    x = 65,764.54

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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.