Home / 77,756.72-107,307.68-43,767.40

Finding the Fourth Proportional to 77,756.72, 107,307.68 and 43,767.40

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Solution

The fourth proportional to 77,756.72, 107,307.68 and 43,767.40 is: 60,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,756.72 : 107,307.68 = 43,767.40 : x
  2. Step 2: Convert to fraction form
    77,756.72/107,307.68 = 43,767.40/x
  3. Step 3: Cross multiply
    77,756.72x = 107,307.68 × 43,767.40
  4. Step 4: Simplify right side
    77,756.72x = 4,696,577,994.78
  5. Step 5: Solve for x
    x = 4,696,577,994.78/77,756.72
  6. Step 6: Final answer
    x = 60,400.93

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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.