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Finding the Fourth Proportional to 77,551.90, 106,994.36 and 50,710.12

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Solution

The fourth proportional to 77,551.90, 106,994.36 and 50,710.12 is: 69,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,551.90 : 106,994.36 = 50,710.12 : x
  2. Step 2: Convert to fraction form
    77,551.90/106,994.36 = 50,710.12/x
  3. Step 3: Cross multiply
    77,551.90x = 106,994.36 × 50,710.12
  4. Step 4: Simplify right side
    77,551.90x = 5,425,696,834.92
  5. Step 5: Solve for x
    x = 5,425,696,834.92/77,551.90
  6. Step 6: Final answer
    x = 69,962.14

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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.