Home / 80,803.47-121,205.24-38,673.64

Finding the Fourth Proportional to 80,803.47, 121,205.24 and 38,673.64

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Solution

The fourth proportional to 80,803.47, 121,205.24 and 38,673.64 is: 58,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,803.47 : 121,205.24 = 38,673.64 : x
  2. Step 2: Convert to fraction form
    80,803.47/121,205.24 = 38,673.64/x
  3. Step 3: Cross multiply
    80,803.47x = 121,205.24 × 38,673.64
  4. Step 4: Simplify right side
    80,803.47x = 4,687,447,018.48
  5. Step 5: Solve for x
    x = 4,687,447,018.48/80,803.47
  6. Step 6: Final answer
    x = 58,010.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.