Home / 72,341.74-99,836.35-40,512.69

Finding the Fourth Proportional to 72,341.74, 99,836.35 and 40,512.69

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Solution

The fourth proportional to 72,341.74, 99,836.35 and 40,512.69 is: 55,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341.74 : 99,836.35 = 40,512.69 : x
  2. Step 2: Convert to fraction form
    72,341.74/99,836.35 = 40,512.69/x
  3. Step 3: Cross multiply
    72,341.74x = 99,836.35 × 40,512.69
  4. Step 4: Simplify right side
    72,341.74x = 4,044,638,997.00
  5. Step 5: Solve for x
    x = 4,044,638,997.00/72,341.74
  6. Step 6: Final answer
    x = 55,910.17

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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.