Home / 56,971.35-78,620.02-31,479.37

Finding the Fourth Proportional to 56,971.35, 78,620.02 and 31,479.37

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Solution

The fourth proportional to 56,971.35, 78,620.02 and 31,479.37 is: 43,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,971.35 : 78,620.02 = 31,479.37 : x
  2. Step 2: Convert to fraction form
    56,971.35/78,620.02 = 31,479.37/x
  3. Step 3: Cross multiply
    56,971.35x = 78,620.02 × 31,479.37
  4. Step 4: Simplify right side
    56,971.35x = 2,474,908,423.74
  5. Step 5: Solve for x
    x = 2,474,908,423.74/56,971.35
  6. Step 6: Final answer
    x = 43,441.28

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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.