Home / 77,713.40-116,541.54-27,780.02

Finding the Fourth Proportional to 77,713.40, 116,541.54 and 27,780.02

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Solution

The fourth proportional to 77,713.40, 116,541.54 and 27,780.02 is: 41,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,713.40 : 116,541.54 = 27,780.02 : x
  2. Step 2: Convert to fraction form
    77,713.40/116,541.54 = 27,780.02/x
  3. Step 3: Cross multiply
    77,713.40x = 116,541.54 × 27,780.02
  4. Step 4: Simplify right side
    77,713.40x = 3,237,526,312.03
  5. Step 5: Solve for x
    x = 3,237,526,312.03/77,713.40
  6. Step 6: Final answer
    x = 41,659.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.