Home / 77,708.18-106,772.58-61,764.95

Finding the Fourth Proportional to 77,708.18, 106,772.58 and 61,764.95

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Solution

The fourth proportional to 77,708.18, 106,772.58 and 61,764.95 is: 84,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708.18 : 106,772.58 = 61,764.95 : x
  2. Step 2: Convert to fraction form
    77,708.18/106,772.58 = 61,764.95/x
  3. Step 3: Cross multiply
    77,708.18x = 106,772.58 × 61,764.95
  4. Step 4: Simplify right side
    77,708.18x = 6,594,803,332.00
  5. Step 5: Solve for x
    x = 6,594,803,332.00/77,708.18
  6. Step 6: Final answer
    x = 84,866.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.