Home / 56,132.79-77,462.08-30,639.66

Finding the Fourth Proportional to 56,132.79, 77,462.08 and 30,639.66

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Solution

The fourth proportional to 56,132.79, 77,462.08 and 30,639.66 is: 42,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,132.79 : 77,462.08 = 30,639.66 : x
  2. Step 2: Convert to fraction form
    56,132.79/77,462.08 = 30,639.66/x
  3. Step 3: Cross multiply
    56,132.79x = 77,462.08 × 30,639.66
  4. Step 4: Simplify right side
    56,132.79x = 2,373,411,794.09
  5. Step 5: Solve for x
    x = 2,373,411,794.09/56,132.79
  6. Step 6: Final answer
    x = 42,282.09

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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.