Home / 51,100.90-70,522.63-28,439.64

Finding the Fourth Proportional to 51,100.90, 70,522.63 and 28,439.64

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Solution

The fourth proportional to 51,100.90, 70,522.63 and 28,439.64 is: 39,248.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,100.90 : 70,522.63 = 28,439.64 : x
  2. Step 2: Convert to fraction form
    51,100.90/70,522.63 = 28,439.64/x
  3. Step 3: Cross multiply
    51,100.90x = 70,522.63 × 28,439.64
  4. Step 4: Simplify right side
    51,100.90x = 2,005,638,137.95
  5. Step 5: Solve for x
    x = 2,005,638,137.95/51,100.90
  6. Step 6: Final answer
    x = 39,248.59

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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.