Home / 56,803.26-78,390.10-31,654.38

Finding the Fourth Proportional to 56,803.26, 78,390.10 and 31,654.38

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Solution

The fourth proportional to 56,803.26, 78,390.10 and 31,654.38 is: 43,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,803.26 : 78,390.10 = 31,654.38 : x
  2. Step 2: Convert to fraction form
    56,803.26/78,390.10 = 31,654.38/x
  3. Step 3: Cross multiply
    56,803.26x = 78,390.10 × 31,654.38
  4. Step 4: Simplify right side
    56,803.26x = 2,481,390,013.64
  5. Step 5: Solve for x
    x = 2,481,390,013.64/56,803.26
  6. Step 6: Final answer
    x = 43,683.94

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1.5x scale

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.