Home / 51,851.36-71,538.16-30,637.92

Finding the Fourth Proportional to 51,851.36, 71,538.16 and 30,637.92

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Solution

The fourth proportional to 51,851.36, 71,538.16 and 30,637.92 is: 42,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,851.36 : 71,538.16 = 30,637.92 : x
  2. Step 2: Convert to fraction form
    51,851.36/71,538.16 = 30,637.92/x
  3. Step 3: Cross multiply
    51,851.36x = 71,538.16 × 30,637.92
  4. Step 4: Simplify right side
    51,851.36x = 2,191,780,423.03
  5. Step 5: Solve for x
    x = 2,191,780,423.03/51,851.36
  6. Step 6: Final answer
    x = 42,270.45

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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.