Home / 91,075.20-136,547.04-61,418.88

Finding the Fourth Proportional to 91,075.20, 136,547.04 and 61,418.88

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Solution

The fourth proportional to 91,075.20, 136,547.04 and 61,418.88 is: 92,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,075.20 : 136,547.04 = 61,418.88 : x
  2. Step 2: Convert to fraction form
    91,075.20/136,547.04 = 61,418.88/x
  3. Step 3: Cross multiply
    91,075.20x = 136,547.04 × 61,418.88
  4. Step 4: Simplify right side
    91,075.20x = 8,386,566,264.12
  5. Step 5: Solve for x
    x = 8,386,566,264.12/91,075.20
  6. Step 6: Final answer
    x = 92,083.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.