Home / 52,276.19-78,418.53-31,359.15

Finding the Fourth Proportional to 52,276.19, 78,418.53 and 31,359.15

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Solution

The fourth proportional to 52,276.19, 78,418.53 and 31,359.15 is: 47,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,276.19 : 78,418.53 = 31,359.15 : x
  2. Step 2: Convert to fraction form
    52,276.19/78,418.53 = 31,359.15/x
  3. Step 3: Cross multiply
    52,276.19x = 78,418.53 × 31,359.15
  4. Step 4: Simplify right side
    52,276.19x = 2,459,138,445.05
  5. Step 5: Solve for x
    x = 2,459,138,445.05/52,276.19
  6. Step 6: Final answer
    x = 47,041.28

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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.