Home / 70,386.57-97,133.18-38,121.03

Finding the Fourth Proportional to 70,386.57, 97,133.18 and 38,121.03

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Solution

The fourth proportional to 70,386.57, 97,133.18 and 38,121.03 is: 52,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,386.57 : 97,133.18 = 38,121.03 : x
  2. Step 2: Convert to fraction form
    70,386.57/97,133.18 = 38,121.03/x
  3. Step 3: Cross multiply
    70,386.57x = 97,133.18 × 38,121.03
  4. Step 4: Simplify right side
    70,386.57x = 3,702,816,678.17
  5. Step 5: Solve for x
    x = 3,702,816,678.17/70,386.57
  6. Step 6: Final answer
    x = 52,606.86

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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.