Home / 90,564.80-135,670.48-59,305.28

Finding the Fourth Proportional to 90,564.80, 135,670.48 and 59,305.28

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Solution

The fourth proportional to 90,564.80, 135,670.48 and 59,305.28 is: 88,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,564.80 : 135,670.48 = 59,305.28 : x
  2. Step 2: Convert to fraction form
    90,564.80/135,670.48 = 59,305.28/x
  3. Step 3: Cross multiply
    90,564.80x = 135,670.48 × 59,305.28
  4. Step 4: Simplify right side
    90,564.80x = 8,045,975,804.13
  5. Step 5: Solve for x
    x = 8,045,975,804.13/90,564.80
  6. Step 6: Final answer
    x = 88,842.20

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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.