Home / 51,171.51-70,614.87-28,509.33

Finding the Fourth Proportional to 51,171.51, 70,614.87 and 28,509.33

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Solution

The fourth proportional to 51,171.51, 70,614.87 and 28,509.33 is: 39,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,171.51 : 70,614.87 = 28,509.33 : x
  2. Step 2: Convert to fraction form
    51,171.51/70,614.87 = 28,509.33/x
  3. Step 3: Cross multiply
    51,171.51x = 70,614.87 × 28,509.33
  4. Step 4: Simplify right side
    51,171.51x = 2,013,182,631.74
  5. Step 5: Solve for x
    x = 2,013,182,631.74/51,171.51
  6. Step 6: Final answer
    x = 39,341.86

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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.