Home / 85,655.10-118,201-47,414.73

Finding the Fourth Proportional to 85,655.10, 118,201 and 47,414.73

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Solution

The fourth proportional to 85,655.10, 118,201 and 47,414.73 is: 65,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,655.10 : 118,201 = 47,414.73 : x
  2. Step 2: Convert to fraction form
    85,655.10/118,201 = 47,414.73/x
  3. Step 3: Cross multiply
    85,655.10x = 118,201 × 47,414.73
  4. Step 4: Simplify right side
    85,655.10x = 5,604,468,500.73
  5. Step 5: Solve for x
    x = 5,604,468,500.73/85,655.10
  6. Step 6: Final answer
    x = 65,430.65

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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.