Home / 90,233.28-135,341.28-31,060.80

Finding the Fourth Proportional to 90,233.28, 135,341.28 and 31,060.80

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Solution

The fourth proportional to 90,233.28, 135,341.28 and 31,060.80 is: 46,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,233.28 : 135,341.28 = 31,060.80 : x
  2. Step 2: Convert to fraction form
    90,233.28/135,341.28 = 31,060.80/x
  3. Step 3: Cross multiply
    90,233.28x = 135,341.28 × 31,060.80
  4. Step 4: Simplify right side
    90,233.28x = 4,203,808,429.82
  5. Step 5: Solve for x
    x = 4,203,808,429.82/90,233.28
  6. Step 6: Final answer
    x = 46,588.23

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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.