Home / 90,890.60-125,427.84-52,655.36

Finding the Fourth Proportional to 90,890.60, 125,427.84 and 52,655.36

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Solution

The fourth proportional to 90,890.60, 125,427.84 and 52,655.36 is: 72,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,890.60 : 125,427.84 = 52,655.36 : x
  2. Step 2: Convert to fraction form
    90,890.60/125,427.84 = 52,655.36/x
  3. Step 3: Cross multiply
    90,890.60x = 125,427.84 × 52,655.36
  4. Step 4: Simplify right side
    90,890.60x = 6,604,448,069.22
  5. Step 5: Solve for x
    x = 6,604,448,069.22/90,890.60
  6. Step 6: Final answer
    x = 72,663.71

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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.