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Finding the Fourth Proportional to 50,759, 70,047.44 and 28,407.32

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Solution

The fourth proportional to 50,759, 70,047.44 and 28,407.32 is: 39,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,759 : 70,047.44 = 28,407.32 : x
  2. Step 2: Convert to fraction form
    50,759/70,047.44 = 28,407.32/x
  3. Step 3: Cross multiply
    50,759x = 70,047.44 × 28,407.32
  4. Step 4: Simplify right side
    50,759x = 1,989,860,043.26
  5. Step 5: Solve for x
    x = 1,989,860,043.26/50,759
  6. Step 6: Final answer
    x = 39,202.11

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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.