Home / 89,123.28-133,611.12-46,979.76

Finding the Fourth Proportional to 89,123.28, 133,611.12 and 46,979.76

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Solution

The fourth proportional to 89,123.28, 133,611.12 and 46,979.76 is: 70,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,123.28 : 133,611.12 = 46,979.76 : x
  2. Step 2: Convert to fraction form
    89,123.28/133,611.12 = 46,979.76/x
  3. Step 3: Cross multiply
    89,123.28x = 133,611.12 × 46,979.76
  4. Step 4: Simplify right side
    89,123.28x = 6,277,018,350.93
  5. Step 5: Solve for x
    x = 6,277,018,350.93/89,123.28
  6. Step 6: Final answer
    x = 70,430.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.