Home / 56,189.64-77,540.22-31,038.60

Finding the Fourth Proportional to 56,189.64, 77,540.22 and 31,038.60

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Solution

The fourth proportional to 56,189.64, 77,540.22 and 31,038.60 is: 42,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,189.64 : 77,540.22 = 31,038.60 : x
  2. Step 2: Convert to fraction form
    56,189.64/77,540.22 = 31,038.60/x
  3. Step 3: Cross multiply
    56,189.64x = 77,540.22 × 31,038.60
  4. Step 4: Simplify right side
    56,189.64x = 2,406,739,872.49
  5. Step 5: Solve for x
    x = 2,406,739,872.49/56,189.64
  6. Step 6: Final answer
    x = 42,832.45

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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.