Home / 51,570.30-71,172.06-28,909.35

Finding the Fourth Proportional to 51,570.30, 71,172.06 and 28,909.35

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Solution

The fourth proportional to 51,570.30, 71,172.06 and 28,909.35 is: 39,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,570.30 : 71,172.06 = 28,909.35 : x
  2. Step 2: Convert to fraction form
    51,570.30/71,172.06 = 28,909.35/x
  3. Step 3: Cross multiply
    51,570.30x = 71,172.06 × 28,909.35
  4. Step 4: Simplify right side
    51,570.30x = 2,057,537,992.76
  5. Step 5: Solve for x
    x = 2,057,537,992.76/51,570.30
  6. Step 6: Final answer
    x = 39,897.73

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1.5x scale

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.