Home / 90,813.38-125,320.51-52,574.55

Finding the Fourth Proportional to 90,813.38, 125,320.51 and 52,574.55

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Solution

The fourth proportional to 90,813.38, 125,320.51 and 52,574.55 is: 72,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.38 : 125,320.51 = 52,574.55 : x
  2. Step 2: Convert to fraction form
    90,813.38/125,320.51 = 52,574.55/x
  3. Step 3: Cross multiply
    90,813.38x = 125,320.51 × 52,574.55
  4. Step 4: Simplify right side
    90,813.38x = 6,588,669,419.02
  5. Step 5: Solve for x
    x = 6,588,669,419.02/90,813.38
  6. Step 6: Final answer
    x = 72,551.75

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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.