Home / 72,037.92-99,417.96-40,211.60

Finding the Fourth Proportional to 72,037.92, 99,417.96 and 40,211.60

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Solution

The fourth proportional to 72,037.92, 99,417.96 and 40,211.60 is: 55,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037.92 : 99,417.96 = 40,211.60 : x
  2. Step 2: Convert to fraction form
    72,037.92/99,417.96 = 40,211.60/x
  3. Step 3: Cross multiply
    72,037.92x = 99,417.96 × 40,211.60
  4. Step 4: Simplify right side
    72,037.92x = 3,997,755,240.34
  5. Step 5: Solve for x
    x = 3,997,755,240.34/72,037.92
  6. Step 6: Final answer
    x = 55,495.15

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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.