Home / 98,747.42-136,268.06-56,319.62

Finding the Fourth Proportional to 98,747.42, 136,268.06 and 56,319.62

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Solution

The fourth proportional to 98,747.42, 136,268.06 and 56,319.62 is: 77,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,747.42 : 136,268.06 = 56,319.62 : x
  2. Step 2: Convert to fraction form
    98,747.42/136,268.06 = 56,319.62/x
  3. Step 3: Cross multiply
    98,747.42x = 136,268.06 × 56,319.62
  4. Step 4: Simplify right side
    98,747.42x = 7,674,565,357.34
  5. Step 5: Solve for x
    x = 7,674,565,357.34/98,747.42
  6. Step 6: Final answer
    x = 77,719.15

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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.