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Finding the Fourth Proportional to 55,929.00, 77,182.03 and 30,778.50

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Solution

The fourth proportional to 55,929.00, 77,182.03 and 30,778.50 is: 42,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,929.00 : 77,182.03 = 30,778.50 : x
  2. Step 2: Convert to fraction form
    55,929.00/77,182.03 = 30,778.50/x
  3. Step 3: Cross multiply
    55,929.00x = 77,182.03 × 30,778.50
  4. Step 4: Simplify right side
    55,929.00x = 2,375,547,329.50
  5. Step 5: Solve for x
    x = 2,375,547,329.50/55,929.00
  6. Step 6: Final answer
    x = 42,474.34

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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.