Home / 72,244.98-99,708.12-40,416.03

Finding the Fourth Proportional to 72,244.98, 99,708.12 and 40,416.03

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Solution

The fourth proportional to 72,244.98, 99,708.12 and 40,416.03 is: 55,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,244.98 : 99,708.12 = 40,416.03 : x
  2. Step 2: Convert to fraction form
    72,244.98/99,708.12 = 40,416.03/x
  3. Step 3: Cross multiply
    72,244.98x = 99,708.12 × 40,416.03
  4. Step 4: Simplify right side
    72,244.98x = 4,029,806,369.16
  5. Step 5: Solve for x
    x = 4,029,806,369.16/72,244.98
  6. Step 6: Final answer
    x = 55,779.74

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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.