Home / 77,320.72-115,981.08-35,762.32

Finding the Fourth Proportional to 77,320.72, 115,981.08 and 35,762.32

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Solution

The fourth proportional to 77,320.72, 115,981.08 and 35,762.32 is: 53,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320.72 : 115,981.08 = 35,762.32 : x
  2. Step 2: Convert to fraction form
    77,320.72/115,981.08 = 35,762.32/x
  3. Step 3: Cross multiply
    77,320.72x = 115,981.08 × 35,762.32
  4. Step 4: Simplify right side
    77,320.72x = 4,147,752,496.91
  5. Step 5: Solve for x
    x = 4,147,752,496.91/77,320.72
  6. Step 6: Final answer
    x = 53,643.48

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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.