Home / 76,410.11-105,462.45-58,307.87

Finding the Fourth Proportional to 76,410.11, 105,462.45 and 58,307.87

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Solution

The fourth proportional to 76,410.11, 105,462.45 and 58,307.87 is: 80,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,410.11 : 105,462.45 = 58,307.87 : x
  2. Step 2: Convert to fraction form
    76,410.11/105,462.45 = 58,307.87/x
  3. Step 3: Cross multiply
    76,410.11x = 105,462.45 × 58,307.87
  4. Step 4: Simplify right side
    76,410.11x = 6,149,290,297.17
  5. Step 5: Solve for x
    x = 6,149,290,297.17/76,410.11
  6. Step 6: Final answer
    x = 80,477.45

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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.