Home / 78,927.17-108,927-43,122.56

Finding the Fourth Proportional to 78,927.17, 108,927 and 43,122.56

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Solution

The fourth proportional to 78,927.17, 108,927 and 43,122.56 is: 59,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927.17 : 108,927 = 43,122.56 : x
  2. Step 2: Convert to fraction form
    78,927.17/108,927 = 43,122.56/x
  3. Step 3: Cross multiply
    78,927.17x = 108,927 × 43,122.56
  4. Step 4: Simplify right side
    78,927.17x = 4,697,210,548.49
  5. Step 5: Solve for x
    x = 4,697,210,548.49/78,927.17
  6. Step 6: Final answer
    x = 59,513.23

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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.