Home / 77,506.40-106,981.56-50,653.08

Finding the Fourth Proportional to 77,506.40, 106,981.56 and 50,653.08

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Solution

The fourth proportional to 77,506.40, 106,981.56 and 50,653.08 is: 69,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,506.40 : 106,981.56 = 50,653.08 : x
  2. Step 2: Convert to fraction form
    77,506.40/106,981.56 = 50,653.08/x
  3. Step 3: Cross multiply
    77,506.40x = 106,981.56 × 50,653.08
  4. Step 4: Simplify right side
    77,506.40x = 5,418,945,263.94
  5. Step 5: Solve for x
    x = 5,418,945,263.94/77,506.40
  6. Step 6: Final answer
    x = 69,916.10

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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.