Home / 90,383.10-135,574.65-58,890.30

Finding the Fourth Proportional to 90,383.10, 135,574.65 and 58,890.30

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Solution

The fourth proportional to 90,383.10, 135,574.65 and 58,890.30 is: 88,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,383.10 : 135,574.65 = 58,890.30 : x
  2. Step 2: Convert to fraction form
    90,383.10/135,574.65 = 58,890.30/x
  3. Step 3: Cross multiply
    90,383.10x = 135,574.65 × 58,890.30
  4. Step 4: Simplify right side
    90,383.10x = 7,984,031,810.90
  5. Step 5: Solve for x
    x = 7,984,031,810.90/90,383.10
  6. Step 6: Final answer
    x = 88,335.45

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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.