Home / 51,003.90-70,373.85-30,860.28

Finding the Fourth Proportional to 51,003.90, 70,373.85 and 30,860.28

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Solution

The fourth proportional to 51,003.90, 70,373.85 and 30,860.28 is: 42,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,003.90 : 70,373.85 = 30,860.28 : x
  2. Step 2: Convert to fraction form
    51,003.90/70,373.85 = 30,860.28/x
  3. Step 3: Cross multiply
    51,003.90x = 70,373.85 × 30,860.28
  4. Step 4: Simplify right side
    51,003.90x = 2,171,756,715.68
  5. Step 5: Solve for x
    x = 2,171,756,715.68/51,003.90
  6. Step 6: Final answer
    x = 42,580.21

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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.