Home / 77,943.18-116,885.90-28,009.82

Finding the Fourth Proportional to 77,943.18, 116,885.90 and 28,009.82

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Solution

The fourth proportional to 77,943.18, 116,885.90 and 28,009.82 is: 42,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,943.18 : 116,885.90 = 28,009.82 : x
  2. Step 2: Convert to fraction form
    77,943.18/116,885.90 = 28,009.82/x
  3. Step 3: Cross multiply
    77,943.18x = 116,885.90 × 28,009.82
  4. Step 4: Simplify right side
    77,943.18x = 3,273,953,019.54
  5. Step 5: Solve for x
    x = 3,273,953,019.54/77,943.18
  6. Step 6: Final answer
    x = 42,004.36

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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.