Home / 52,031.51-71,804.01-28,158.69

Finding the Fourth Proportional to 52,031.51, 71,804.01 and 28,158.69

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Solution

The fourth proportional to 52,031.51, 71,804.01 and 28,158.69 is: 38,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,031.51 : 71,804.01 = 28,158.69 : x
  2. Step 2: Convert to fraction form
    52,031.51/71,804.01 = 28,158.69/x
  3. Step 3: Cross multiply
    52,031.51x = 71,804.01 × 28,158.69
  4. Step 4: Simplify right side
    52,031.51x = 2,021,906,858.35
  5. Step 5: Solve for x
    x = 2,021,906,858.35/52,031.51
  6. Step 6: Final answer
    x = 38,859.28

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Double scale
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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.