Home / 77,983.59-116,970.78-21,822.45

Finding the Fourth Proportional to 77,983.59, 116,970.78 and 21,822.45

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Solution

The fourth proportional to 77,983.59, 116,970.78 and 21,822.45 is: 32,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,983.59 : 116,970.78 = 21,822.45 : x
  2. Step 2: Convert to fraction form
    77,983.59/116,970.78 = 21,822.45/x
  3. Step 3: Cross multiply
    77,983.59x = 116,970.78 × 21,822.45
  4. Step 4: Simplify right side
    77,983.59x = 2,552,588,641.20
  5. Step 5: Solve for x
    x = 2,552,588,641.20/77,983.59
  6. Step 6: Final answer
    x = 32,732.38

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1.5x scale

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.