Home / 51,171.51-70,615.62-28,510.41

Finding the Fourth Proportional to 51,171.51, 70,615.62 and 28,510.41

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Solution

The fourth proportional to 51,171.51, 70,615.62 and 28,510.41 is: 39,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,171.51 : 70,615.62 = 28,510.41 : x
  2. Step 2: Convert to fraction form
    51,171.51/70,615.62 = 28,510.41/x
  3. Step 3: Cross multiply
    51,171.51x = 70,615.62 × 28,510.41
  4. Step 4: Simplify right side
    51,171.51x = 2,013,280,278.60
  5. Step 5: Solve for x
    x = 2,013,280,278.60/51,171.51
  6. Step 6: Final answer
    x = 39,343.77

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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.