Home / 83,387.98-115,076.33-45,148.36

Finding the Fourth Proportional to 83,387.98, 115,076.33 and 45,148.36

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Solution

The fourth proportional to 83,387.98, 115,076.33 and 45,148.36 is: 62,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,387.98 : 115,076.33 = 45,148.36 : x
  2. Step 2: Convert to fraction form
    83,387.98/115,076.33 = 45,148.36/x
  3. Step 3: Cross multiply
    83,387.98x = 115,076.33 × 45,148.36
  4. Step 4: Simplify right side
    83,387.98x = 5,195,507,574.32
  5. Step 5: Solve for x
    x = 5,195,507,574.32/83,387.98
  6. Step 6: Final answer
    x = 62,305.23

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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.