Home / 74,308.32-102,557.34-57,337.20

Finding the Fourth Proportional to 74,308.32, 102,557.34 and 57,337.20

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Solution

The fourth proportional to 74,308.32, 102,557.34 and 57,337.20 is: 79,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,308.32 : 102,557.34 = 57,337.20 : x
  2. Step 2: Convert to fraction form
    74,308.32/102,557.34 = 57,337.20/x
  3. Step 3: Cross multiply
    74,308.32x = 102,557.34 × 57,337.20
  4. Step 4: Simplify right side
    74,308.32x = 5,880,350,715.05
  5. Step 5: Solve for x
    x = 5,880,350,715.05/74,308.32
  6. Step 6: Final answer
    x = 79,134.49

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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.