Home / 83,356.12-115,031.64-45,632.80

Finding the Fourth Proportional to 83,356.12, 115,031.64 and 45,632.80

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Solution

The fourth proportional to 83,356.12, 115,031.64 and 45,632.80 is: 62,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,356.12 : 115,031.64 = 45,632.80 : x
  2. Step 2: Convert to fraction form
    83,356.12/115,031.64 = 45,632.80/x
  3. Step 3: Cross multiply
    83,356.12x = 115,031.64 × 45,632.80
  4. Step 4: Simplify right side
    83,356.12x = 5,249,215,821.79
  5. Step 5: Solve for x
    x = 5,249,215,821.79/83,356.12
  6. Step 6: Final answer
    x = 62,973.37

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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.