Home / 51,143.05-70,577.43-28,486.38

Finding the Fourth Proportional to 51,143.05, 70,577.43 and 28,486.38

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Solution

The fourth proportional to 51,143.05, 70,577.43 and 28,486.38 is: 39,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.05 : 70,577.43 = 28,486.38 : x
  2. Step 2: Convert to fraction form
    51,143.05/70,577.43 = 28,486.38/x
  3. Step 3: Cross multiply
    51,143.05x = 70,577.43 × 28,486.38
  4. Step 4: Simplify right side
    51,143.05x = 2,010,495,648.24
  5. Step 5: Solve for x
    x = 2,010,495,648.24/51,143.05
  6. Step 6: Final answer
    x = 39,311.22

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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.