Home / 90,873.36-125,423.64-53,159.76

Finding the Fourth Proportional to 90,873.36, 125,423.64 and 53,159.76

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Solution

The fourth proportional to 90,873.36, 125,423.64 and 53,159.76 is: 73,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,873.36 : 125,423.64 = 53,159.76 : x
  2. Step 2: Convert to fraction form
    90,873.36/125,423.64 = 53,159.76/x
  3. Step 3: Cross multiply
    90,873.36x = 125,423.64 × 53,159.76
  4. Step 4: Simplify right side
    90,873.36x = 6,667,490,600.73
  5. Step 5: Solve for x
    x = 6,667,490,600.73/90,873.36
  6. Step 6: Final answer
    x = 73,371.23

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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.