Home / 98,134.32-135,423.72-57,849.60

Finding the Fourth Proportional to 98,134.32, 135,423.72 and 57,849.60

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Solution

The fourth proportional to 98,134.32, 135,423.72 and 57,849.60 is: 79,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,134.32 : 135,423.72 = 57,849.60 : x
  2. Step 2: Convert to fraction form
    98,134.32/135,423.72 = 57,849.60/x
  3. Step 3: Cross multiply
    98,134.32x = 135,423.72 × 57,849.60
  4. Step 4: Simplify right side
    98,134.32x = 7,834,208,032.51
  5. Step 5: Solve for x
    x = 7,834,208,032.51/98,134.32
  6. Step 6: Final answer
    x = 79,831.48

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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.