Home / 83,177.12-124,816.32-43,762.40

Finding the Fourth Proportional to 83,177.12, 124,816.32 and 43,762.40

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Solution

The fourth proportional to 83,177.12, 124,816.32 and 43,762.40 is: 65,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,177.12 : 124,816.32 = 43,762.40 : x
  2. Step 2: Convert to fraction form
    83,177.12/124,816.32 = 43,762.40/x
  3. Step 3: Cross multiply
    83,177.12x = 124,816.32 × 43,762.40
  4. Step 4: Simplify right side
    83,177.12x = 5,462,261,722.37
  5. Step 5: Solve for x
    x = 5,462,261,722.37/83,177.12
  6. Step 6: Final answer
    x = 65,670.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.