Home / 51,190.07-70,637.33-30,778.07

Finding the Fourth Proportional to 51,190.07, 70,637.33 and 30,778.07

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Solution

The fourth proportional to 51,190.07, 70,637.33 and 30,778.07 is: 42,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.07 : 70,637.33 = 30,778.07 : x
  2. Step 2: Convert to fraction form
    51,190.07/70,637.33 = 30,778.07/x
  3. Step 3: Cross multiply
    51,190.07x = 70,637.33 × 30,778.07
  4. Step 4: Simplify right side
    51,190.07x = 2,174,080,411.11
  5. Step 5: Solve for x
    x = 2,174,080,411.11/51,190.07
  6. Step 6: Final answer
    x = 42,470.75

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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.