Home / 91,101.04-125,720.52-50,818.30

Finding the Fourth Proportional to 91,101.04, 125,720.52 and 50,818.30

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Solution

The fourth proportional to 91,101.04, 125,720.52 and 50,818.30 is: 70,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.04 : 125,720.52 = 50,818.30 : x
  2. Step 2: Convert to fraction form
    91,101.04/125,720.52 = 50,818.30/x
  3. Step 3: Cross multiply
    91,101.04x = 125,720.52 × 50,818.30
  4. Step 4: Simplify right side
    91,101.04x = 6,388,903,101.52
  5. Step 5: Solve for x
    x = 6,388,903,101.52/91,101.04
  6. Step 6: Final answer
    x = 70,129.86

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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.