Home / 77,400.04-106,807.62-43,405.96

Finding the Fourth Proportional to 77,400.04, 106,807.62 and 43,405.96

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Solution

The fourth proportional to 77,400.04, 106,807.62 and 43,405.96 is: 59,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,400.04 : 106,807.62 = 43,405.96 : x
  2. Step 2: Convert to fraction form
    77,400.04/106,807.62 = 43,405.96/x
  3. Step 3: Cross multiply
    77,400.04x = 106,807.62 × 43,405.96
  4. Step 4: Simplify right side
    77,400.04x = 4,636,087,281.42
  5. Step 5: Solve for x
    x = 4,636,087,281.42/77,400.04
  6. Step 6: Final answer
    x = 59,897.74

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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.