Home / 50,915.21-70,261.13-28,255.19

Finding the Fourth Proportional to 50,915.21, 70,261.13 and 28,255.19

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Solution

The fourth proportional to 50,915.21, 70,261.13 and 28,255.19 is: 38,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,915.21 : 70,261.13 = 28,255.19 : x
  2. Step 2: Convert to fraction form
    50,915.21/70,261.13 = 28,255.19/x
  3. Step 3: Cross multiply
    50,915.21x = 70,261.13 × 28,255.19
  4. Step 4: Simplify right side
    50,915.21x = 1,985,241,085.18
  5. Step 5: Solve for x
    x = 1,985,241,085.18/50,915.21
  6. Step 6: Final answer
    x = 38,991.12

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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.