Home / 99,588.28-137,432.34-54,266.76

Finding the Fourth Proportional to 99,588.28, 137,432.34 and 54,266.76

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Solution

The fourth proportional to 99,588.28, 137,432.34 and 54,266.76 is: 74,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,588.28 : 137,432.34 = 54,266.76 : x
  2. Step 2: Convert to fraction form
    99,588.28/137,432.34 = 54,266.76/x
  3. Step 3: Cross multiply
    99,588.28x = 137,432.34 × 54,266.76
  4. Step 4: Simplify right side
    99,588.28x = 7,458,007,811.02
  5. Step 5: Solve for x
    x = 7,458,007,811.02/99,588.28
  6. Step 6: Final answer
    x = 74,888.41

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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.