Home / 52,478.24-78,734.37-31,415.00

Finding the Fourth Proportional to 52,478.24, 78,734.37 and 31,415.00

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Solution

The fourth proportional to 52,478.24, 78,734.37 and 31,415.00 is: 47,132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.24 : 78,734.37 = 31,415.00 : x
  2. Step 2: Convert to fraction form
    52,478.24/78,734.37 = 31,415.00/x
  3. Step 3: Cross multiply
    52,478.24x = 78,734.37 × 31,415.00
  4. Step 4: Simplify right side
    52,478.24x = 2,473,439,839.88
  5. Step 5: Solve for x
    x = 2,473,439,839.88/52,478.24
  6. Step 6: Final answer
    x = 47,132.68

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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.