Home / 90,441.18-124,783.34-71,261.51

Finding the Fourth Proportional to 90,441.18, 124,783.34 and 71,261.51

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Solution

The fourth proportional to 90,441.18, 124,783.34 and 71,261.51 is: 98,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,441.18 : 124,783.34 = 71,261.51 : x
  2. Step 2: Convert to fraction form
    90,441.18/124,783.34 = 71,261.51/x
  3. Step 3: Cross multiply
    90,441.18x = 124,783.34 × 71,261.51
  4. Step 4: Simplify right side
    90,441.18x = 8,892,248,251.02
  5. Step 5: Solve for x
    x = 8,892,248,251.02/90,441.18
  6. Step 6: Final answer
    x = 98,320.79

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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.