Home / 51,040.88-70,440.72-28,381.52

Finding the Fourth Proportional to 51,040.88, 70,440.72 and 28,381.52

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Solution

The fourth proportional to 51,040.88, 70,440.72 and 28,381.52 is: 39,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.88 : 70,440.72 = 28,381.52 : x
  2. Step 2: Convert to fraction form
    51,040.88/70,440.72 = 28,381.52/x
  3. Step 3: Cross multiply
    51,040.88x = 70,440.72 × 28,381.52
  4. Step 4: Simplify right side
    51,040.88x = 1,999,214,703.49
  5. Step 5: Solve for x
    x = 1,999,214,703.49/51,040.88
  6. Step 6: Final answer
    x = 39,168.89

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1.5x scale

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.