Home / 77,637.14-116,455.72-61,981.46

Finding the Fourth Proportional to 77,637.14, 116,455.72 and 61,981.46

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Solution

The fourth proportional to 77,637.14, 116,455.72 and 61,981.46 is: 92,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,637.14 : 116,455.72 = 61,981.46 : x
  2. Step 2: Convert to fraction form
    77,637.14/116,455.72 = 61,981.46/x
  3. Step 3: Cross multiply
    77,637.14x = 116,455.72 × 61,981.46
  4. Step 4: Simplify right side
    77,637.14x = 7,218,095,550.95
  5. Step 5: Solve for x
    x = 7,218,095,550.95/77,637.14
  6. Step 6: Final answer
    x = 92,972.20

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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.