Home / 90,364.28-135,542.76-43,002.36

Finding the Fourth Proportional to 90,364.28, 135,542.76 and 43,002.36

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Solution

The fourth proportional to 90,364.28, 135,542.76 and 43,002.36 is: 64,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,364.28 : 135,542.76 = 43,002.36 : x
  2. Step 2: Convert to fraction form
    90,364.28/135,542.76 = 43,002.36/x
  3. Step 3: Cross multiply
    90,364.28x = 135,542.76 × 43,002.36
  4. Step 4: Simplify right side
    90,364.28x = 5,828,658,560.91
  5. Step 5: Solve for x
    x = 5,828,658,560.91/90,364.28
  6. Step 6: Final answer
    x = 64,501.80

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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.