Home / 83,688.54-115,490.25-45,447.36

Finding the Fourth Proportional to 83,688.54, 115,490.25 and 45,447.36

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Solution

The fourth proportional to 83,688.54, 115,490.25 and 45,447.36 is: 62,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.54 : 115,490.25 = 45,447.36 : x
  2. Step 2: Convert to fraction form
    83,688.54/115,490.25 = 45,447.36/x
  3. Step 3: Cross multiply
    83,688.54x = 115,490.25 × 45,447.36
  4. Step 4: Simplify right side
    83,688.54x = 5,248,726,968.24
  5. Step 5: Solve for x
    x = 5,248,726,968.24/83,688.54
  6. Step 6: Final answer
    x = 62,717.39

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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.