Home / 51,078.81-70,487.73-28,417.35

Finding the Fourth Proportional to 51,078.81, 70,487.73 and 28,417.35

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Solution

The fourth proportional to 51,078.81, 70,487.73 and 28,417.35 is: 39,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.81 : 70,487.73 = 28,417.35 : x
  2. Step 2: Convert to fraction form
    51,078.81/70,487.73 = 28,417.35/x
  3. Step 3: Cross multiply
    51,078.81x = 70,487.73 × 28,417.35
  4. Step 4: Simplify right side
    51,078.81x = 2,003,074,494.12
  5. Step 5: Solve for x
    x = 2,003,074,494.12/51,078.81
  6. Step 6: Final answer
    x = 39,215.37

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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.