Home / 48,111.80-72,090.90-40,278.20

Finding the Fourth Proportional to 48,111.80, 72,090.90 and 40,278.20

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Solution

The fourth proportional to 48,111.80, 72,090.90 and 40,278.20 is: 60,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,111.80 : 72,090.90 = 40,278.20 : x
  2. Step 2: Convert to fraction form
    48,111.80/72,090.90 = 40,278.20/x
  3. Step 3: Cross multiply
    48,111.80x = 72,090.90 × 40,278.20
  4. Step 4: Simplify right side
    48,111.80x = 2,903,691,688.38
  5. Step 5: Solve for x
    x = 2,903,691,688.38/48,111.80
  6. Step 6: Final answer
    x = 60,353.00

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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.