Home / 84,788.19-127,184.99-42,645.27

Finding the Fourth Proportional to 84,788.19, 127,184.99 and 42,645.27

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Solution

The fourth proportional to 84,788.19, 127,184.99 and 42,645.27 is: 63,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,788.19 : 127,184.99 = 42,645.27 : x
  2. Step 2: Convert to fraction form
    84,788.19/127,184.99 = 42,645.27/x
  3. Step 3: Cross multiply
    84,788.19x = 127,184.99 × 42,645.27
  4. Step 4: Simplify right side
    84,788.19x = 5,423,838,345.11
  5. Step 5: Solve for x
    x = 5,423,838,345.11/84,788.19
  6. Step 6: Final answer
    x = 63,969.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.