Home / 51,407.26-70,946.28-28,748.12

Finding the Fourth Proportional to 51,407.26, 70,946.28 and 28,748.12

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Solution

The fourth proportional to 51,407.26, 70,946.28 and 28,748.12 is: 39,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,407.26 : 70,946.28 = 28,748.12 : x
  2. Step 2: Convert to fraction form
    51,407.26/70,946.28 = 28,748.12/x
  3. Step 3: Cross multiply
    51,407.26x = 70,946.28 × 28,748.12
  4. Step 4: Simplify right side
    51,407.26x = 2,039,571,816.26
  5. Step 5: Solve for x
    x = 2,039,571,816.26/51,407.26
  6. Step 6: Final answer
    x = 39,674.78

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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.