Home / 50,921.85-70,272.06-28,261.11

Finding the Fourth Proportional to 50,921.85, 70,272.06 and 28,261.11

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Solution

The fourth proportional to 50,921.85, 70,272.06 and 28,261.11 is: 39,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,921.85 : 70,272.06 = 28,261.11 : x
  2. Step 2: Convert to fraction form
    50,921.85/70,272.06 = 28,261.11/x
  3. Step 3: Cross multiply
    50,921.85x = 70,272.06 × 28,261.11
  4. Step 4: Simplify right side
    50,921.85x = 1,985,966,417.59
  5. Step 5: Solve for x
    x = 1,985,966,417.59/50,921.85
  6. Step 6: Final answer
    x = 39,000.28

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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.