Home / 99,692.28-137,567.70-57,264.48

Finding the Fourth Proportional to 99,692.28, 137,567.70 and 57,264.48

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Solution

The fourth proportional to 99,692.28, 137,567.70 and 57,264.48 is: 79,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692.28 : 137,567.70 = 57,264.48 : x
  2. Step 2: Convert to fraction form
    99,692.28/137,567.70 = 57,264.48/x
  3. Step 3: Cross multiply
    99,692.28x = 137,567.70 × 57,264.48
  4. Step 4: Simplify right side
    99,692.28x = 7,877,742,805.30
  5. Step 5: Solve for x
    x = 7,877,742,805.30/99,692.28
  6. Step 6: Final answer
    x = 79,020.59

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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.