Home / 70,928.08-97,879.55-38,663.06

Finding the Fourth Proportional to 70,928.08, 97,879.55 and 38,663.06

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Solution

The fourth proportional to 70,928.08, 97,879.55 and 38,663.06 is: 53,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928.08 : 97,879.55 = 38,663.06 : x
  2. Step 2: Convert to fraction form
    70,928.08/97,879.55 = 38,663.06/x
  3. Step 3: Cross multiply
    70,928.08x = 97,879.55 × 38,663.06
  4. Step 4: Simplify right side
    70,928.08x = 3,784,322,231.71
  5. Step 5: Solve for x
    x = 3,784,322,231.71/70,928.08
  6. Step 6: Final answer
    x = 53,354.36

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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.