Home / 72,003.04-107,999.70-19,417.84

Finding the Fourth Proportional to 72,003.04, 107,999.70 and 19,417.84

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Solution

The fourth proportional to 72,003.04, 107,999.70 and 19,417.84 is: 29,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003.04 : 107,999.70 = 19,417.84 : x
  2. Step 2: Convert to fraction form
    72,003.04/107,999.70 = 19,417.84/x
  3. Step 3: Cross multiply
    72,003.04x = 107,999.70 × 19,417.84
  4. Step 4: Simplify right side
    72,003.04x = 2,097,120,894.65
  5. Step 5: Solve for x
    x = 2,097,120,894.65/72,003.04
  6. Step 6: Final answer
    x = 29,125.45

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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.