Home / 83,685.20-115,486.47-45,959.45

Finding the Fourth Proportional to 83,685.20, 115,486.47 and 45,959.45

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Solution

The fourth proportional to 83,685.20, 115,486.47 and 45,959.45 is: 63,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,685.20 : 115,486.47 = 45,959.45 : x
  2. Step 2: Convert to fraction form
    83,685.20/115,486.47 = 45,959.45/x
  3. Step 3: Cross multiply
    83,685.20x = 115,486.47 × 45,959.45
  4. Step 4: Simplify right side
    83,685.20x = 5,307,694,066.21
  5. Step 5: Solve for x
    x = 5,307,694,066.21/83,685.20
  6. Step 6: Final answer
    x = 63,424.53

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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.