Home / 87,935.96-121,345.86-56,101.46

Finding the Fourth Proportional to 87,935.96, 121,345.86 and 56,101.46

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Solution

The fourth proportional to 87,935.96, 121,345.86 and 56,101.46 is: 77,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935.96 : 121,345.86 = 56,101.46 : x
  2. Step 2: Convert to fraction form
    87,935.96/121,345.86 = 56,101.46/x
  3. Step 3: Cross multiply
    87,935.96x = 121,345.86 × 56,101.46
  4. Step 4: Simplify right side
    87,935.96x = 6,807,679,910.96
  5. Step 5: Solve for x
    x = 6,807,679,910.96/87,935.96
  6. Step 6: Final answer
    x = 77,416.34

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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.