Home / 74,112.86-111,135.74-31,973.06

Finding the Fourth Proportional to 74,112.86, 111,135.74 and 31,973.06

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Solution

The fourth proportional to 74,112.86, 111,135.74 and 31,973.06 is: 47,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.86 : 111,135.74 = 31,973.06 : x
  2. Step 2: Convert to fraction form
    74,112.86/111,135.74 = 31,973.06/x
  3. Step 3: Cross multiply
    74,112.86x = 111,135.74 × 31,973.06
  4. Step 4: Simplify right side
    74,112.86x = 3,553,349,207.42
  5. Step 5: Solve for x
    x = 3,553,349,207.42/74,112.86
  6. Step 6: Final answer
    x = 47,945.11

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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.