Home / 72,247.32-99,705.06-40,416.75

Finding the Fourth Proportional to 72,247.32, 99,705.06 and 40,416.75

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Solution

The fourth proportional to 72,247.32, 99,705.06 and 40,416.75 is: 55,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.32 : 99,705.06 = 40,416.75 : x
  2. Step 2: Convert to fraction form
    72,247.32/99,705.06 = 40,416.75/x
  3. Step 3: Cross multiply
    72,247.32x = 99,705.06 × 40,416.75
  4. Step 4: Simplify right side
    72,247.32x = 4,029,754,483.76
  5. Step 5: Solve for x
    x = 4,029,754,483.76/72,247.32
  6. Step 6: Final answer
    x = 55,777.22

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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.