Home / 102,579.31-141,566.57-57,266.20

Finding the Fourth Proportional to 102,579.31, 141,566.57 and 57,266.20

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Solution

The fourth proportional to 102,579.31, 141,566.57 and 57,266.20 is: 79,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,579.31 : 141,566.57 = 57,266.20 : x
  2. Step 2: Convert to fraction form
    102,579.31/141,566.57 = 57,266.20/x
  3. Step 3: Cross multiply
    102,579.31x = 141,566.57 × 57,266.20
  4. Step 4: Simplify right side
    102,579.31x = 8,106,979,510.93
  5. Step 5: Solve for x
    x = 8,106,979,510.93/102,579.31
  6. Step 6: Final answer
    x = 79,031.33

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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.