Home / 90,795.72-125,302.14-75,663.05

Finding the Fourth Proportional to 90,795.72, 125,302.14 and 75,663.05

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Solution

The fourth proportional to 90,795.72, 125,302.14 and 75,663.05 is: 104,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795.72 : 125,302.14 = 75,663.05 : x
  2. Step 2: Convert to fraction form
    90,795.72/125,302.14 = 75,663.05/x
  3. Step 3: Cross multiply
    90,795.72x = 125,302.14 × 75,663.05
  4. Step 4: Simplify right side
    90,795.72x = 9,480,741,079.10
  5. Step 5: Solve for x
    x = 9,480,741,079.10/90,795.72
  6. Step 6: Final answer
    x = 104,418.38

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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.