Home / 81,410.48-112,343.17-47,420.04

Finding the Fourth Proportional to 81,410.48, 112,343.17 and 47,420.04

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Solution

The fourth proportional to 81,410.48, 112,343.17 and 47,420.04 is: 65,437.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,410.48 : 112,343.17 = 47,420.04 : x
  2. Step 2: Convert to fraction form
    81,410.48/112,343.17 = 47,420.04/x
  3. Step 3: Cross multiply
    81,410.48x = 112,343.17 × 47,420.04
  4. Step 4: Simplify right side
    81,410.48x = 5,327,317,615.13
  5. Step 5: Solve for x
    x = 5,327,317,615.13/81,410.48
  6. Step 6: Final answer
    x = 65,437.74

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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.