Home / 89,772.40-123,886.78-49,487.76

Finding the Fourth Proportional to 89,772.40, 123,886.78 and 49,487.76

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Solution

The fourth proportional to 89,772.40, 123,886.78 and 49,487.76 is: 68,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772.40 : 123,886.78 = 49,487.76 : x
  2. Step 2: Convert to fraction form
    89,772.40/123,886.78 = 49,487.76/x
  3. Step 3: Cross multiply
    89,772.40x = 123,886.78 × 49,487.76
  4. Step 4: Simplify right side
    89,772.40x = 6,130,879,235.81
  5. Step 5: Solve for x
    x = 6,130,879,235.81/89,772.40
  6. Step 6: Final answer
    x = 68,293.59

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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.