Home / 51,543.68-71,122.16-28,880.96

Finding the Fourth Proportional to 51,543.68, 71,122.16 and 28,880.96

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Solution

The fourth proportional to 51,543.68, 71,122.16 and 28,880.96 is: 39,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.68 : 71,122.16 = 28,880.96 : x
  2. Step 2: Convert to fraction form
    51,543.68/71,122.16 = 28,880.96/x
  3. Step 3: Cross multiply
    51,543.68x = 71,122.16 × 28,880.96
  4. Step 4: Simplify right side
    51,543.68x = 2,054,076,258.07
  5. Step 5: Solve for x
    x = 2,054,076,258.07/51,543.68
  6. Step 6: Final answer
    x = 39,851.18

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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.