Home / 75,673.75-104,433.02-42,139.75

Finding the Fourth Proportional to 75,673.75, 104,433.02 and 42,139.75

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Solution

The fourth proportional to 75,673.75, 104,433.02 and 42,139.75 is: 58,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,673.75 : 104,433.02 = 42,139.75 : x
  2. Step 2: Convert to fraction form
    75,673.75/104,433.02 = 42,139.75/x
  3. Step 3: Cross multiply
    75,673.75x = 104,433.02 × 42,139.75
  4. Step 4: Simplify right side
    75,673.75x = 4,400,781,354.55
  5. Step 5: Solve for x
    x = 4,400,781,354.55/75,673.75
  6. Step 6: Final answer
    x = 58,154.66

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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.