Home / 70,817.28-97,728.71-38,988.33

Finding the Fourth Proportional to 70,817.28, 97,728.71 and 38,988.33

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Solution

The fourth proportional to 70,817.28, 97,728.71 and 38,988.33 is: 53,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.28 : 97,728.71 = 38,988.33 : x
  2. Step 2: Convert to fraction form
    70,817.28/97,728.71 = 38,988.33/x
  3. Step 3: Cross multiply
    70,817.28x = 97,728.71 × 38,988.33
  4. Step 4: Simplify right side
    70,817.28x = 3,810,279,001.01
  5. Step 5: Solve for x
    x = 3,810,279,001.01/70,817.28
  6. Step 6: Final answer
    x = 53,804.37

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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.