Home / 98,569.98-135,979.16-64,563.75

Finding the Fourth Proportional to 98,569.98, 135,979.16 and 64,563.75

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Solution

The fourth proportional to 98,569.98, 135,979.16 and 64,563.75 is: 89,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569.98 : 135,979.16 = 64,563.75 : x
  2. Step 2: Convert to fraction form
    98,569.98/135,979.16 = 64,563.75/x
  3. Step 3: Cross multiply
    98,569.98x = 135,979.16 × 64,563.75
  4. Step 4: Simplify right side
    98,569.98x = 8,779,324,168.63
  5. Step 5: Solve for x
    x = 8,779,324,168.63/98,569.98
  6. Step 6: Final answer
    x = 89,066.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.