Home / 90,870.68-125,409.12-50,592.08

Finding the Fourth Proportional to 90,870.68, 125,409.12 and 50,592.08

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Solution

The fourth proportional to 90,870.68, 125,409.12 and 50,592.08 is: 69,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870.68 : 125,409.12 = 50,592.08 : x
  2. Step 2: Convert to fraction form
    90,870.68/125,409.12 = 50,592.08/x
  3. Step 3: Cross multiply
    90,870.68x = 125,409.12 × 50,592.08
  4. Step 4: Simplify right side
    90,870.68x = 6,344,708,231.77
  5. Step 5: Solve for x
    x = 6,344,708,231.77/90,870.68
  6. Step 6: Final answer
    x = 69,821.29

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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.