Home / 89,438.40-123,424.20-49,152.60

Finding the Fourth Proportional to 89,438.40, 123,424.20 and 49,152.60

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Solution

The fourth proportional to 89,438.40, 123,424.20 and 49,152.60 is: 67,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,438.40 : 123,424.20 = 49,152.60 : x
  2. Step 2: Convert to fraction form
    89,438.40/123,424.20 = 49,152.60/x
  3. Step 3: Cross multiply
    89,438.40x = 123,424.20 × 49,152.60
  4. Step 4: Simplify right side
    89,438.40x = 6,066,620,332.92
  5. Step 5: Solve for x
    x = 6,066,620,332.92/89,438.40
  6. Step 6: Final answer
    x = 67,830.15

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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.