Home / 81,449.28-112,396.83-45,637.47

Finding the Fourth Proportional to 81,449.28, 112,396.83 and 45,637.47

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Solution

The fourth proportional to 81,449.28, 112,396.83 and 45,637.47 is: 62,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449.28 : 112,396.83 = 45,637.47 : x
  2. Step 2: Convert to fraction form
    81,449.28/112,396.83 = 45,637.47/x
  3. Step 3: Cross multiply
    81,449.28x = 112,396.83 × 45,637.47
  4. Step 4: Simplify right side
    81,449.28x = 5,129,506,957.22
  5. Step 5: Solve for x
    x = 5,129,506,957.22/81,449.28
  6. Step 6: Final answer
    x = 62,977.93

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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.