Home / 81,737.64-112,808.43-45,927.72

Finding the Fourth Proportional to 81,737.64, 112,808.43 and 45,927.72

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Solution

The fourth proportional to 81,737.64, 112,808.43 and 45,927.72 is: 63,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,737.64 : 112,808.43 = 45,927.72 : x
  2. Step 2: Convert to fraction form
    81,737.64/112,808.43 = 45,927.72/x
  3. Step 3: Cross multiply
    81,737.64x = 112,808.43 × 45,927.72
  4. Step 4: Simplify right side
    81,737.64x = 5,181,033,986.68
  5. Step 5: Solve for x
    x = 5,181,033,986.68/81,737.64
  6. Step 6: Final answer
    x = 63,386.15

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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.