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Finding the Fourth Proportional to 77,360, 106,808.32 and 59,423.04

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Solution

The fourth proportional to 77,360, 106,808.32 and 59,423.04 is: 82,043.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,360 : 106,808.32 = 59,423.04 : x
  2. Step 2: Convert to fraction form
    77,360/106,808.32 = 59,423.04/x
  3. Step 3: Cross multiply
    77,360x = 106,808.32 × 59,423.04
  4. Step 4: Simplify right side
    77,360x = 6,346,875,071.69
  5. Step 5: Solve for x
    x = 6,346,875,071.69/77,360
  6. Step 6: Final answer
    x = 82,043.37

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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.