Home / 81,709.14-112,752.47-45,892.16

Finding the Fourth Proportional to 81,709.14, 112,752.47 and 45,892.16

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Solution

The fourth proportional to 81,709.14, 112,752.47 and 45,892.16 is: 63,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,709.14 : 112,752.47 = 45,892.16 : x
  2. Step 2: Convert to fraction form
    81,709.14/112,752.47 = 45,892.16/x
  3. Step 3: Cross multiply
    81,709.14x = 112,752.47 × 45,892.16
  4. Step 4: Simplify right side
    81,709.14x = 5,174,454,393.64
  5. Step 5: Solve for x
    x = 5,174,454,393.64/81,709.14
  6. Step 6: Final answer
    x = 63,327.73

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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.