Home / 90,071.28-135,113.94-52,635.24

Finding the Fourth Proportional to 90,071.28, 135,113.94 and 52,635.24

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Solution

The fourth proportional to 90,071.28, 135,113.94 and 52,635.24 is: 78,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,071.28 : 135,113.94 = 52,635.24 : x
  2. Step 2: Convert to fraction form
    90,071.28/135,113.94 = 52,635.24/x
  3. Step 3: Cross multiply
    90,071.28x = 135,113.94 × 52,635.24
  4. Step 4: Simplify right side
    90,071.28x = 7,111,754,659.25
  5. Step 5: Solve for x
    x = 7,111,754,659.25/90,071.28
  6. Step 6: Final answer
    x = 78,956.96

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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.