Home / 51,061.75-70,465.38-28,402.21

Finding the Fourth Proportional to 51,061.75, 70,465.38 and 28,402.21

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Solution

The fourth proportional to 51,061.75, 70,465.38 and 28,402.21 is: 39,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,061.75 : 70,465.38 = 28,402.21 : x
  2. Step 2: Convert to fraction form
    51,061.75/70,465.38 = 28,402.21/x
  3. Step 3: Cross multiply
    51,061.75x = 70,465.38 × 28,402.21
  4. Step 4: Simplify right side
    51,061.75x = 2,001,372,520.49
  5. Step 5: Solve for x
    x = 2,001,372,520.49/51,061.75
  6. Step 6: Final answer
    x = 39,195.14

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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.