Home / 51,187.38-70,639.29-28,525.74

Finding the Fourth Proportional to 51,187.38, 70,639.29 and 28,525.74

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Solution

The fourth proportional to 51,187.38, 70,639.29 and 28,525.74 is: 39,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.38 : 70,639.29 = 28,525.74 : x
  2. Step 2: Convert to fraction form
    51,187.38/70,639.29 = 28,525.74/x
  3. Step 3: Cross multiply
    51,187.38x = 70,639.29 × 28,525.74
  4. Step 4: Simplify right side
    51,187.38x = 2,015,038,020.32
  5. Step 5: Solve for x
    x = 2,015,038,020.32/51,187.38
  6. Step 6: Final answer
    x = 39,365.91

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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.