Home / 50,776.08-70,073.28-28,420.08

Finding the Fourth Proportional to 50,776.08, 70,073.28 and 28,420.08

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Solution

The fourth proportional to 50,776.08, 70,073.28 and 28,420.08 is: 39,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,776.08 : 70,073.28 = 28,420.08 : x
  2. Step 2: Convert to fraction form
    50,776.08/70,073.28 = 28,420.08/x
  3. Step 3: Cross multiply
    50,776.08x = 70,073.28 × 28,420.08
  4. Step 4: Simplify right side
    50,776.08x = 1,991,488,223.46
  5. Step 5: Solve for x
    x = 1,991,488,223.46/50,776.08
  6. Step 6: Final answer
    x = 39,220.99

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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.