Home / 90,421.99-135,663.37-63,432.46

Finding the Fourth Proportional to 90,421.99, 135,663.37 and 63,432.46

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Solution

The fourth proportional to 90,421.99, 135,663.37 and 63,432.46 is: 95,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,421.99 : 135,663.37 = 63,432.46 : x
  2. Step 2: Convert to fraction form
    90,421.99/135,663.37 = 63,432.46/x
  3. Step 3: Cross multiply
    90,421.99x = 135,663.37 × 63,432.46
  4. Step 4: Simplify right side
    90,421.99x = 8,605,460,634.67
  5. Step 5: Solve for x
    x = 8,605,460,634.67/90,421.99
  6. Step 6: Final answer
    x = 95,170.00

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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.