Home / 72,088.45-108,132.63-52,491.67

Finding the Fourth Proportional to 72,088.45, 108,132.63 and 52,491.67

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Solution

The fourth proportional to 72,088.45, 108,132.63 and 52,491.67 is: 78,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,088.45 : 108,132.63 = 52,491.67 : x
  2. Step 2: Convert to fraction form
    72,088.45/108,132.63 = 52,491.67/x
  3. Step 3: Cross multiply
    72,088.45x = 108,132.63 × 52,491.67
  4. Step 4: Simplify right side
    72,088.45x = 5,676,062,330.19
  5. Step 5: Solve for x
    x = 5,676,062,330.19/72,088.45
  6. Step 6: Final answer
    x = 78,737.47

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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.