Home / 56,415.36-77,853.24-31,264.86

Finding the Fourth Proportional to 56,415.36, 77,853.24 and 31,264.86

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Solution

The fourth proportional to 56,415.36, 77,853.24 and 31,264.86 is: 43,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,415.36 : 77,853.24 = 31,264.86 : x
  2. Step 2: Convert to fraction form
    56,415.36/77,853.24 = 31,264.86/x
  3. Step 3: Cross multiply
    56,415.36x = 77,853.24 × 31,264.86
  4. Step 4: Simplify right side
    56,415.36x = 2,434,070,649.15
  5. Step 5: Solve for x
    x = 2,434,070,649.15/56,415.36
  6. Step 6: Final answer
    x = 43,145.53

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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.