Home / 98,832.10-136,386.66-53,509.72

Finding the Fourth Proportional to 98,832.10, 136,386.66 and 53,509.72

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Solution

The fourth proportional to 98,832.10, 136,386.66 and 53,509.72 is: 73,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,832.10 : 136,386.66 = 53,509.72 : x
  2. Step 2: Convert to fraction form
    98,832.10/136,386.66 = 53,509.72/x
  3. Step 3: Cross multiply
    98,832.10x = 136,386.66 × 53,509.72
  4. Step 4: Simplify right side
    98,832.10x = 7,298,011,988.34
  5. Step 5: Solve for x
    x = 7,298,011,988.34/98,832.10
  6. Step 6: Final answer
    x = 73,842.53

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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.