Home / 81,877.96-112,990.03-45,579.16

Finding the Fourth Proportional to 81,877.96, 112,990.03 and 45,579.16

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Solution

The fourth proportional to 81,877.96, 112,990.03 and 45,579.16 is: 62,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,877.96 : 112,990.03 = 45,579.16 : x
  2. Step 2: Convert to fraction form
    81,877.96/112,990.03 = 45,579.16/x
  3. Step 3: Cross multiply
    81,877.96x = 112,990.03 × 45,579.16
  4. Step 4: Simplify right side
    81,877.96x = 5,149,990,655.77
  5. Step 5: Solve for x
    x = 5,149,990,655.77/81,877.96
  6. Step 6: Final answer
    x = 62,898.38

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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.