Home / 48,039.20-72,015.60-31,407.20

Finding the Fourth Proportional to 48,039.20, 72,015.60 and 31,407.20

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Solution

The fourth proportional to 48,039.20, 72,015.60 and 31,407.20 is: 47,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,039.20 : 72,015.60 = 31,407.20 : x
  2. Step 2: Convert to fraction form
    48,039.20/72,015.60 = 31,407.20/x
  3. Step 3: Cross multiply
    48,039.20x = 72,015.60 × 31,407.20
  4. Step 4: Simplify right side
    48,039.20x = 2,261,808,352.32
  5. Step 5: Solve for x
    x = 2,261,808,352.32/48,039.20
  6. Step 6: Final answer
    x = 47,082.56

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1.5x scale

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.