Home / 72,064.60-99,448.89-40,233.22

Finding the Fourth Proportional to 72,064.60, 99,448.89 and 40,233.22

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Solution

The fourth proportional to 72,064.60, 99,448.89 and 40,233.22 is: 55,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,064.60 : 99,448.89 = 40,233.22 : x
  2. Step 2: Convert to fraction form
    72,064.60/99,448.89 = 40,233.22/x
  3. Step 3: Cross multiply
    72,064.60x = 99,448.89 × 40,233.22
  4. Step 4: Simplify right side
    72,064.60x = 4,001,149,070.13
  5. Step 5: Solve for x
    x = 4,001,149,070.13/72,064.60
  6. Step 6: Final answer
    x = 55,521.70

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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.