Home / 66,407.10-99,637.65-28,974.30

Finding the Fourth Proportional to 66,407.10, 99,637.65 and 28,974.30

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Solution

The fourth proportional to 66,407.10, 99,637.65 and 28,974.30 is: 43,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,407.10 : 99,637.65 = 28,974.30 : x
  2. Step 2: Convert to fraction form
    66,407.10/99,637.65 = 28,974.30/x
  3. Step 3: Cross multiply
    66,407.10x = 99,637.65 × 28,974.30
  4. Step 4: Simplify right side
    66,407.10x = 2,886,931,162.40
  5. Step 5: Solve for x
    x = 2,886,931,162.40/66,407.10
  6. Step 6: Final answer
    x = 43,473.23

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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.