Home / 89,143.80-123,012.86-48,854.70

Finding the Fourth Proportional to 89,143.80, 123,012.86 and 48,854.70

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Solution

The fourth proportional to 89,143.80, 123,012.86 and 48,854.70 is: 67,416.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,143.80 : 123,012.86 = 48,854.70 : x
  2. Step 2: Convert to fraction form
    89,143.80/123,012.86 = 48,854.70/x
  3. Step 3: Cross multiply
    89,143.80x = 123,012.86 × 48,854.70
  4. Step 4: Simplify right side
    89,143.80x = 6,009,755,941.77
  5. Step 5: Solve for x
    x = 6,009,755,941.77/89,143.80
  6. Step 6: Final answer
    x = 67,416.42

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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.