Home / 90,730.64-125,164.66-58,909.52

Finding the Fourth Proportional to 90,730.64, 125,164.66 and 58,909.52

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Solution

The fourth proportional to 90,730.64, 125,164.66 and 58,909.52 is: 81,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730.64 : 125,164.66 = 58,909.52 : x
  2. Step 2: Convert to fraction form
    90,730.64/125,164.66 = 58,909.52/x
  3. Step 3: Cross multiply
    90,730.64x = 125,164.66 × 58,909.52
  4. Step 4: Simplify right side
    90,730.64x = 7,373,390,041.56
  5. Step 5: Solve for x
    x = 7,373,390,041.56/90,730.64
  6. Step 6: Final answer
    x = 81,266.81

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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.