Home / 89,385.12-134,041.23-38,787.66

Finding the Fourth Proportional to 89,385.12, 134,041.23 and 38,787.66

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Solution

The fourth proportional to 89,385.12, 134,041.23 and 38,787.66 is: 58,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,385.12 : 134,041.23 = 38,787.66 : x
  2. Step 2: Convert to fraction form
    89,385.12/134,041.23 = 38,787.66/x
  3. Step 3: Cross multiply
    89,385.12x = 134,041.23 × 38,787.66
  4. Step 4: Simplify right side
    89,385.12x = 5,199,145,655.22
  5. Step 5: Solve for x
    x = 5,199,145,655.22/89,385.12
  6. Step 6: Final answer
    x = 58,165.67

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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.