Home / 74,007.72-111,018.56-20,699.70

Finding the Fourth Proportional to 74,007.72, 111,018.56 and 20,699.70

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Solution

The fourth proportional to 74,007.72, 111,018.56 and 20,699.70 is: 31,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,007.72 : 111,018.56 = 20,699.70 : x
  2. Step 2: Convert to fraction form
    74,007.72/111,018.56 = 20,699.70/x
  3. Step 3: Cross multiply
    74,007.72x = 111,018.56 × 20,699.70
  4. Step 4: Simplify right side
    74,007.72x = 2,298,050,886.43
  5. Step 5: Solve for x
    x = 2,298,050,886.43/74,007.72
  6. Step 6: Final answer
    x = 31,051.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.