Home / 90,328.66-135,577.02-45,988.58

Finding the Fourth Proportional to 90,328.66, 135,577.02 and 45,988.58

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Solution

The fourth proportional to 90,328.66, 135,577.02 and 45,988.58 is: 69,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,328.66 : 135,577.02 = 45,988.58 : x
  2. Step 2: Convert to fraction form
    90,328.66/135,577.02 = 45,988.58/x
  3. Step 3: Cross multiply
    90,328.66x = 135,577.02 × 45,988.58
  4. Step 4: Simplify right side
    90,328.66x = 6,234,994,630.43
  5. Step 5: Solve for x
    x = 6,234,994,630.43/90,328.66
  6. Step 6: Final answer
    x = 69,025.65

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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.