Home / 52,276.12-72,142.20-31,055.44

Finding the Fourth Proportional to 52,276.12, 72,142.20 and 31,055.44

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Solution

The fourth proportional to 52,276.12, 72,142.20 and 31,055.44 is: 42,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,276.12 : 72,142.20 = 31,055.44 : x
  2. Step 2: Convert to fraction form
    52,276.12/72,142.20 = 31,055.44/x
  3. Step 3: Cross multiply
    52,276.12x = 72,142.20 × 31,055.44
  4. Step 4: Simplify right side
    52,276.12x = 2,240,407,763.57
  5. Step 5: Solve for x
    x = 2,240,407,763.57/52,276.12
  6. Step 6: Final answer
    x = 42,857.19

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1.5x scale

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.