Home / 51,036.02-70,428.17-28,375.51

Finding the Fourth Proportional to 51,036.02, 70,428.17 and 28,375.51

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Solution

The fourth proportional to 51,036.02, 70,428.17 and 28,375.51 is: 39,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,036.02 : 70,428.17 = 28,375.51 : x
  2. Step 2: Convert to fraction form
    51,036.02/70,428.17 = 28,375.51/x
  3. Step 3: Cross multiply
    51,036.02x = 70,428.17 × 28,375.51
  4. Step 4: Simplify right side
    51,036.02x = 1,998,435,100.24
  5. Step 5: Solve for x
    x = 1,998,435,100.24/51,036.02
  6. Step 6: Final answer
    x = 39,157.35

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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.