Home / 56,910.47-78,534.39-31,416.29

Finding the Fourth Proportional to 56,910.47, 78,534.39 and 31,416.29

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Solution

The fourth proportional to 56,910.47, 78,534.39 and 31,416.29 is: 43,353.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.47 : 78,534.39 = 31,416.29 : x
  2. Step 2: Convert to fraction form
    56,910.47/78,534.39 = 31,416.29/x
  3. Step 3: Cross multiply
    56,910.47x = 78,534.39 × 31,416.29
  4. Step 4: Simplify right side
    56,910.47x = 2,467,258,778.54
  5. Step 5: Solve for x
    x = 2,467,258,778.54/56,910.47
  6. Step 6: Final answer
    x = 43,353.34

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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.