Home / 90,868.49-125,402.19-50,579.69

Finding the Fourth Proportional to 90,868.49, 125,402.19 and 50,579.69

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Solution

The fourth proportional to 90,868.49, 125,402.19 and 50,579.69 is: 69,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,868.49 : 125,402.19 = 50,579.69 : x
  2. Step 2: Convert to fraction form
    90,868.49/125,402.19 = 50,579.69/x
  3. Step 3: Cross multiply
    90,868.49x = 125,402.19 × 50,579.69
  4. Step 4: Simplify right side
    90,868.49x = 6,342,803,895.52
  5. Step 5: Solve for x
    x = 6,342,803,895.52/90,868.49
  6. Step 6: Final answer
    x = 69,802.02

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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.