Home / 70,505.28-97,303.42-38,680.32

Finding the Fourth Proportional to 70,505.28, 97,303.42 and 38,680.32

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Solution

The fourth proportional to 70,505.28, 97,303.42 and 38,680.32 is: 53,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,505.28 : 97,303.42 = 38,680.32 : x
  2. Step 2: Convert to fraction form
    70,505.28/97,303.42 = 38,680.32/x
  3. Step 3: Cross multiply
    70,505.28x = 97,303.42 × 38,680.32
  4. Step 4: Simplify right side
    70,505.28x = 3,763,727,422.69
  5. Step 5: Solve for x
    x = 3,763,727,422.69/70,505.28
  6. Step 6: Final answer
    x = 53,382.21

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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.