Home / 56,828.84-78,421.86-31,334.80

Finding the Fourth Proportional to 56,828.84, 78,421.86 and 31,334.80

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Solution

The fourth proportional to 56,828.84, 78,421.86 and 31,334.80 is: 43,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,828.84 : 78,421.86 = 31,334.80 : x
  2. Step 2: Convert to fraction form
    56,828.84/78,421.86 = 31,334.80/x
  3. Step 3: Cross multiply
    56,828.84x = 78,421.86 × 31,334.80
  4. Step 4: Simplify right side
    56,828.84x = 2,457,333,298.73
  5. Step 5: Solve for x
    x = 2,457,333,298.73/56,828.84
  6. Step 6: Final answer
    x = 43,240.95

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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.