Home / 90,808.51-125,319.82-75,675.83

Finding the Fourth Proportional to 90,808.51, 125,319.82 and 75,675.83

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Solution

The fourth proportional to 90,808.51, 125,319.82 and 75,675.83 is: 104,436.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,808.51 : 125,319.82 = 75,675.83 : x
  2. Step 2: Convert to fraction form
    90,808.51/125,319.82 = 75,675.83/x
  3. Step 3: Cross multiply
    90,808.51x = 125,319.82 × 75,675.83
  4. Step 4: Simplify right side
    90,808.51x = 9,483,681,393.95
  5. Step 5: Solve for x
    x = 9,483,681,393.95/90,808.51
  6. Step 6: Final answer
    x = 104,436.04

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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.