Home / 56,884.15-78,500.07-31,390.51

Finding the Fourth Proportional to 56,884.15, 78,500.07 and 31,390.51

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Solution

The fourth proportional to 56,884.15, 78,500.07 and 31,390.51 is: 43,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,884.15 : 78,500.07 = 31,390.51 : x
  2. Step 2: Convert to fraction form
    56,884.15/78,500.07 = 31,390.51/x
  3. Step 3: Cross multiply
    56,884.15x = 78,500.07 × 31,390.51
  4. Step 4: Simplify right side
    56,884.15x = 2,464,157,232.34
  5. Step 5: Solve for x
    x = 2,464,157,232.34/56,884.15
  6. Step 6: Final answer
    x = 43,318.87

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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.