Home / 70,768.19-97,661.59-38,937.15

Finding the Fourth Proportional to 70,768.19, 97,661.59 and 38,937.15

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Solution

The fourth proportional to 70,768.19, 97,661.59 and 38,937.15 is: 53,734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,768.19 : 97,661.59 = 38,937.15 : x
  2. Step 2: Convert to fraction form
    70,768.19/97,661.59 = 38,937.15/x
  3. Step 3: Cross multiply
    70,768.19x = 97,661.59 × 38,937.15
  4. Step 4: Simplify right side
    70,768.19x = 3,802,663,979.07
  5. Step 5: Solve for x
    x = 3,802,663,979.07/70,768.19
  6. Step 6: Final answer
    x = 53,734.09

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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.