Home / 45,918.30-68,746.05-28,269.30

Finding the Fourth Proportional to 45,918.30, 68,746.05 and 28,269.30

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Solution

The fourth proportional to 45,918.30, 68,746.05 and 28,269.30 is: 42,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.30 : 68,746.05 = 28,269.30 : x
  2. Step 2: Convert to fraction form
    45,918.30/68,746.05 = 28,269.30/x
  3. Step 3: Cross multiply
    45,918.30x = 68,746.05 × 28,269.30
  4. Step 4: Simplify right side
    45,918.30x = 1,943,402,711.27
  5. Step 5: Solve for x
    x = 1,943,402,711.27/45,918.30
  6. Step 6: Final answer
    x = 42,323.05

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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.