Home / 72,011.22-99,381.06-39,752.16

Finding the Fourth Proportional to 72,011.22, 99,381.06 and 39,752.16

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Solution

The fourth proportional to 72,011.22, 99,381.06 and 39,752.16 is: 54,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.22 : 99,381.06 = 39,752.16 : x
  2. Step 2: Convert to fraction form
    72,011.22/99,381.06 = 39,752.16/x
  3. Step 3: Cross multiply
    72,011.22x = 99,381.06 × 39,752.16
  4. Step 4: Simplify right side
    72,011.22x = 3,950,611,798.09
  5. Step 5: Solve for x
    x = 3,950,611,798.09/72,011.22
  6. Step 6: Final answer
    x = 54,861.06

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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.