Home / 98,129.72-135,436.74-57,841.16

Finding the Fourth Proportional to 98,129.72, 135,436.74 and 57,841.16

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Solution

The fourth proportional to 98,129.72, 135,436.74 and 57,841.16 is: 79,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,129.72 : 135,436.74 = 57,841.16 : x
  2. Step 2: Convert to fraction form
    98,129.72/135,436.74 = 57,841.16/x
  3. Step 3: Cross multiply
    98,129.72x = 135,436.74 × 57,841.16
  4. Step 4: Simplify right side
    98,129.72x = 7,833,818,148.22
  5. Step 5: Solve for x
    x = 7,833,818,148.22/98,129.72
  6. Step 6: Final answer
    x = 79,831.25

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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.