Home / 81,876.96-112,988.66-45,578.16

Finding the Fourth Proportional to 81,876.96, 112,988.66 and 45,578.16

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Solution

The fourth proportional to 81,876.96, 112,988.66 and 45,578.16 is: 62,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,876.96 : 112,988.66 = 45,578.16 : x
  2. Step 2: Convert to fraction form
    81,876.96/112,988.66 = 45,578.16/x
  3. Step 3: Cross multiply
    81,876.96x = 112,988.66 × 45,578.16
  4. Step 4: Simplify right side
    81,876.96x = 5,149,814,995.77
  5. Step 5: Solve for x
    x = 5,149,814,995.77/81,876.96
  6. Step 6: Final answer
    x = 62,897.00

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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.