Home / 56,189.12-77,540.64-31,038.56

Finding the Fourth Proportional to 56,189.12, 77,540.64 and 31,038.56

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Solution

The fourth proportional to 56,189.12, 77,540.64 and 31,038.56 is: 42,833.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,189.12 : 77,540.64 = 31,038.56 : x
  2. Step 2: Convert to fraction form
    56,189.12/77,540.64 = 31,038.56/x
  3. Step 3: Cross multiply
    56,189.12x = 77,540.64 × 31,038.56
  4. Step 4: Simplify right side
    56,189.12x = 2,406,749,807.08
  5. Step 5: Solve for x
    x = 2,406,749,807.08/56,189.12
  6. Step 6: Final answer
    x = 42,833.02

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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.