Home / 83,642.07-115,422.93-45,400.80

Finding the Fourth Proportional to 83,642.07, 115,422.93 and 45,400.80

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Solution

The fourth proportional to 83,642.07, 115,422.93 and 45,400.80 is: 62,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,642.07 : 115,422.93 = 45,400.80 : x
  2. Step 2: Convert to fraction form
    83,642.07/115,422.93 = 45,400.80/x
  3. Step 3: Cross multiply
    83,642.07x = 115,422.93 × 45,400.80
  4. Step 4: Simplify right side
    83,642.07x = 5,240,293,360.34
  5. Step 5: Solve for x
    x = 5,240,293,360.34/83,642.07
  6. Step 6: Final answer
    x = 62,651.41

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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.