Home / 90,648.18-135,897.48-40,011.30

Finding the Fourth Proportional to 90,648.18, 135,897.48 and 40,011.30

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Solution

The fourth proportional to 90,648.18, 135,897.48 and 40,011.30 is: 59,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,648.18 : 135,897.48 = 40,011.30 : x
  2. Step 2: Convert to fraction form
    90,648.18/135,897.48 = 40,011.30/x
  3. Step 3: Cross multiply
    90,648.18x = 135,897.48 × 40,011.30
  4. Step 4: Simplify right side
    90,648.18x = 5,437,434,841.52
  5. Step 5: Solve for x
    x = 5,437,434,841.52/90,648.18
  6. Step 6: Final answer
    x = 59,983.94

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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.