Home / 72,037.35-99,409.48-40,205.57

Finding the Fourth Proportional to 72,037.35, 99,409.48 and 40,205.57

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Solution

The fourth proportional to 72,037.35, 99,409.48 and 40,205.57 is: 55,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037.35 : 99,409.48 = 40,205.57 : x
  2. Step 2: Convert to fraction form
    72,037.35/99,409.48 = 40,205.57/x
  3. Step 3: Cross multiply
    72,037.35x = 99,409.48 × 40,205.57
  4. Step 4: Simplify right side
    72,037.35x = 3,996,814,209.24
  5. Step 5: Solve for x
    x = 3,996,814,209.24/72,037.35
  6. Step 6: Final answer
    x = 55,482.53

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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.