Home / 75,133.78-103,696.00-42,868.24

Finding the Fourth Proportional to 75,133.78, 103,696.00 and 42,868.24

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Solution

The fourth proportional to 75,133.78, 103,696.00 and 42,868.24 is: 59,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,133.78 : 103,696.00 = 42,868.24 : x
  2. Step 2: Convert to fraction form
    75,133.78/103,696.00 = 42,868.24/x
  3. Step 3: Cross multiply
    75,133.78x = 103,696.00 × 42,868.24
  4. Step 4: Simplify right side
    75,133.78x = 4,445,264,648.63
  5. Step 5: Solve for x
    x = 4,445,264,648.63/75,133.78
  6. Step 6: Final answer
    x = 59,164.66

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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.