Home / 56,575.40-78,074.09-31,083.41

Finding the Fourth Proportional to 56,575.40, 78,074.09 and 31,083.41

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Solution

The fourth proportional to 56,575.40, 78,074.09 and 31,083.41 is: 42,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,575.40 : 78,074.09 = 31,083.41 : x
  2. Step 2: Convert to fraction form
    56,575.40/78,074.09 = 31,083.41/x
  3. Step 3: Cross multiply
    56,575.40x = 78,074.09 × 31,083.41
  4. Step 4: Simplify right side
    56,575.40x = 2,426,808,989.62
  5. Step 5: Solve for x
    x = 2,426,808,989.62/56,575.40
  6. Step 6: Final answer
    x = 42,895.13

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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.