Home / 72,214.84-99,652.41-39,947.58

Finding the Fourth Proportional to 72,214.84, 99,652.41 and 39,947.58

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Solution

The fourth proportional to 72,214.84, 99,652.41 and 39,947.58 is: 55,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.84 : 99,652.41 = 39,947.58 : x
  2. Step 2: Convert to fraction form
    72,214.84/99,652.41 = 39,947.58/x
  3. Step 3: Cross multiply
    72,214.84x = 99,652.41 × 39,947.58
  4. Step 4: Simplify right side
    72,214.84x = 3,980,872,620.67
  5. Step 5: Solve for x
    x = 3,980,872,620.67/72,214.84
  6. Step 6: Final answer
    x = 55,125.41

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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.