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Finding the Fourth Proportional to 73,019.64, 109,001.28 and 64,162.32

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Solution

The fourth proportional to 73,019.64, 109,001.28 and 64,162.32 is: 95,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,019.64 : 109,001.28 = 64,162.32 : x
  2. Step 2: Convert to fraction form
    73,019.64/109,001.28 = 64,162.32/x
  3. Step 3: Cross multiply
    73,019.64x = 109,001.28 × 64,162.32
  4. Step 4: Simplify right side
    73,019.64x = 6,993,775,007.77
  5. Step 5: Solve for x
    x = 6,993,775,007.77/73,019.64
  6. Step 6: Final answer
    x = 95,779.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.