Home / 90,811.16-125,248.40-58,990.32

Finding the Fourth Proportional to 90,811.16, 125,248.40 and 58,990.32

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Solution

The fourth proportional to 90,811.16, 125,248.40 and 58,990.32 is: 81,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.16 : 125,248.40 = 58,990.32 : x
  2. Step 2: Convert to fraction form
    90,811.16/125,248.40 = 58,990.32/x
  3. Step 3: Cross multiply
    90,811.16x = 125,248.40 × 58,990.32
  4. Step 4: Simplify right side
    90,811.16x = 7,388,443,195.49
  5. Step 5: Solve for x
    x = 7,388,443,195.49/90,811.16
  6. Step 6: Final answer
    x = 81,360.52

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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.