Home / 50,915.81-70,261.38-28,254.53

Finding the Fourth Proportional to 50,915.81, 70,261.38 and 28,254.53

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Solution

The fourth proportional to 50,915.81, 70,261.38 and 28,254.53 is: 38,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,915.81 : 70,261.38 = 28,254.53 : x
  2. Step 2: Convert to fraction form
    50,915.81/70,261.38 = 28,254.53/x
  3. Step 3: Cross multiply
    50,915.81x = 70,261.38 × 28,254.53
  4. Step 4: Simplify right side
    50,915.81x = 1,985,202,269.05
  5. Step 5: Solve for x
    x = 1,985,202,269.05/50,915.81
  6. Step 6: Final answer
    x = 38,989.90

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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.