Home / 79,030.65-109,185.10-66,264.04

Finding the Fourth Proportional to 79,030.65, 109,185.10 and 66,264.04

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Solution

The fourth proportional to 79,030.65, 109,185.10 and 66,264.04 is: 91,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.65 : 109,185.10 = 66,264.04 : x
  2. Step 2: Convert to fraction form
    79,030.65/109,185.10 = 66,264.04/x
  3. Step 3: Cross multiply
    79,030.65x = 109,185.10 × 66,264.04
  4. Step 4: Simplify right side
    79,030.65x = 7,235,044,956.56
  5. Step 5: Solve for x
    x = 7,235,044,956.56/79,030.65
  6. Step 6: Final answer
    x = 91,547.34

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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.