Home / 72,192.98-99,627.54-40,358.46

Finding the Fourth Proportional to 72,192.98, 99,627.54 and 40,358.46

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Solution

The fourth proportional to 72,192.98, 99,627.54 and 40,358.46 is: 55,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,192.98 : 99,627.54 = 40,358.46 : x
  2. Step 2: Convert to fraction form
    72,192.98/99,627.54 = 40,358.46/x
  3. Step 3: Cross multiply
    72,192.98x = 99,627.54 × 40,358.46
  4. Step 4: Simplify right side
    72,192.98x = 4,020,814,087.99
  5. Step 5: Solve for x
    x = 4,020,814,087.99/72,192.98
  6. Step 6: Final answer
    x = 55,695.36

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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.