Home / 83,718.32-115,538.52-45,999.80

Finding the Fourth Proportional to 83,718.32, 115,538.52 and 45,999.80

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Solution

The fourth proportional to 83,718.32, 115,538.52 and 45,999.80 is: 63,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.32 : 115,538.52 = 45,999.80 : x
  2. Step 2: Convert to fraction form
    83,718.32/115,538.52 = 45,999.80/x
  3. Step 3: Cross multiply
    83,718.32x = 115,538.52 × 45,999.80
  4. Step 4: Simplify right side
    83,718.32x = 5,314,748,812.30
  5. Step 5: Solve for x
    x = 5,314,748,812.30/83,718.32
  6. Step 6: Final answer
    x = 63,483.70

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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.