Home / 81,988.74-113,146.56-46,180.08

Finding the Fourth Proportional to 81,988.74, 113,146.56 and 46,180.08

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Solution

The fourth proportional to 81,988.74, 113,146.56 and 46,180.08 is: 63,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,988.74 : 113,146.56 = 46,180.08 : x
  2. Step 2: Convert to fraction form
    81,988.74/113,146.56 = 46,180.08/x
  3. Step 3: Cross multiply
    81,988.74x = 113,146.56 × 46,180.08
  4. Step 4: Simplify right side
    81,988.74x = 5,225,117,192.52
  5. Step 5: Solve for x
    x = 5,225,117,192.52/81,988.74
  6. Step 6: Final answer
    x = 63,729.69

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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.