Home / 57,064.34-78,770.40-51,085.28

Finding the Fourth Proportional to 57,064.34, 78,770.40 and 51,085.28

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Solution

The fourth proportional to 57,064.34, 78,770.40 and 51,085.28 is: 70,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,064.34 : 78,770.40 = 51,085.28 : x
  2. Step 2: Convert to fraction form
    57,064.34/78,770.40 = 51,085.28/x
  3. Step 3: Cross multiply
    57,064.34x = 78,770.40 × 51,085.28
  4. Step 4: Simplify right side
    57,064.34x = 4,024,007,939.71
  5. Step 5: Solve for x
    x = 4,024,007,939.71/57,064.34
  6. Step 6: Final answer
    x = 70,517.03

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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.