Home / 72,440.35-99,988.50-43,755.45

Finding the Fourth Proportional to 72,440.35, 99,988.50 and 43,755.45

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Solution

The fourth proportional to 72,440.35, 99,988.50 and 43,755.45 is: 60,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440.35 : 99,988.50 = 43,755.45 : x
  2. Step 2: Convert to fraction form
    72,440.35/99,988.50 = 43,755.45/x
  3. Step 3: Cross multiply
    72,440.35x = 99,988.50 × 43,755.45
  4. Step 4: Simplify right side
    72,440.35x = 4,375,041,312.38
  5. Step 5: Solve for x
    x = 4,375,041,312.38/72,440.35
  6. Step 6: Final answer
    x = 60,395.09

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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.