Home / 50,820.39-70,130.10-28,159.71

Finding the Fourth Proportional to 50,820.39, 70,130.10 and 28,159.71

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Solution

The fourth proportional to 50,820.39, 70,130.10 and 28,159.71 is: 38,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,820.39 : 70,130.10 = 28,159.71 : x
  2. Step 2: Convert to fraction form
    50,820.39/70,130.10 = 28,159.71/x
  3. Step 3: Cross multiply
    50,820.39x = 70,130.10 × 28,159.71
  4. Step 4: Simplify right side
    50,820.39x = 1,974,843,278.27
  5. Step 5: Solve for x
    x = 1,974,843,278.27/50,820.39
  6. Step 6: Final answer
    x = 38,859.27

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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.