Home / 56,358.12-77,771.10-31,206

Finding the Fourth Proportional to 56,358.12, 77,771.10 and 31,206

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Solution

The fourth proportional to 56,358.12, 77,771.10 and 31,206 is: 43,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.12 : 77,771.10 = 31,206 : x
  2. Step 2: Convert to fraction form
    56,358.12/77,771.10 = 31,206/x
  3. Step 3: Cross multiply
    56,358.12x = 77,771.10 × 31,206
  4. Step 4: Simplify right side
    56,358.12x = 2,426,924,946.60
  5. Step 5: Solve for x
    x = 2,426,924,946.60/56,358.12
  6. Step 6: Final answer
    x = 43,062.56

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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.