Home / 51,391.02-70,918.11-28,730.06

Finding the Fourth Proportional to 51,391.02, 70,918.11 and 28,730.06

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Solution

The fourth proportional to 51,391.02, 70,918.11 and 28,730.06 is: 39,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,391.02 : 70,918.11 = 28,730.06 : x
  2. Step 2: Convert to fraction form
    51,391.02/70,918.11 = 28,730.06/x
  3. Step 3: Cross multiply
    51,391.02x = 70,918.11 × 28,730.06
  4. Step 4: Simplify right side
    51,391.02x = 2,037,481,555.39
  5. Step 5: Solve for x
    x = 2,037,481,555.39/51,391.02
  6. Step 6: Final answer
    x = 39,646.65

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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.