Home / 102,580.31-141,567.95-57,267.20

Finding the Fourth Proportional to 102,580.31, 141,567.95 and 57,267.20

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Solution

The fourth proportional to 102,580.31, 141,567.95 and 57,267.20 is: 79,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,580.31 : 141,567.95 = 57,267.20 : x
  2. Step 2: Convert to fraction form
    102,580.31/141,567.95 = 57,267.20/x
  3. Step 3: Cross multiply
    102,580.31x = 141,567.95 × 57,267.20
  4. Step 4: Simplify right side
    102,580.31x = 8,107,200,106.24
  5. Step 5: Solve for x
    x = 8,107,200,106.24/102,580.31
  6. Step 6: Final answer
    x = 79,032.71

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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.