Home / 98,528.15-135,990.98-64,516.88

Finding the Fourth Proportional to 98,528.15, 135,990.98 and 64,516.88

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Solution

The fourth proportional to 98,528.15, 135,990.98 and 64,516.88 is: 89,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,528.15 : 135,990.98 = 64,516.88 : x
  2. Step 2: Convert to fraction form
    98,528.15/135,990.98 = 64,516.88/x
  3. Step 3: Cross multiply
    98,528.15x = 135,990.98 × 64,516.88
  4. Step 4: Simplify right side
    98,528.15x = 8,773,713,500.15
  5. Step 5: Solve for x
    x = 8,773,713,500.15/98,528.15
  6. Step 6: Final answer
    x = 89,047.79

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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.