Home / 90,011.55-135,017.28-23,451.53

Finding the Fourth Proportional to 90,011.55, 135,017.28 and 23,451.53

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Solution

The fourth proportional to 90,011.55, 135,017.28 and 23,451.53 is: 35,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.55 : 135,017.28 = 23,451.53 : x
  2. Step 2: Convert to fraction form
    90,011.55/135,017.28 = 23,451.53/x
  3. Step 3: Cross multiply
    90,011.55x = 135,017.28 × 23,451.53
  4. Step 4: Simplify right side
    90,011.55x = 3,166,361,117.35
  5. Step 5: Solve for x
    x = 3,166,361,117.35/90,011.55
  6. Step 6: Final answer
    x = 35,177.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.