Home / 72,579.63-100,158.41-40,748.52

Finding the Fourth Proportional to 72,579.63, 100,158.41 and 40,748.52

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Solution

The fourth proportional to 72,579.63, 100,158.41 and 40,748.52 is: 56,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579.63 : 100,158.41 = 40,748.52 : x
  2. Step 2: Convert to fraction form
    72,579.63/100,158.41 = 40,748.52/x
  3. Step 3: Cross multiply
    72,579.63x = 100,158.41 × 40,748.52
  4. Step 4: Simplify right side
    72,579.63x = 4,081,307,074.92
  5. Step 5: Solve for x
    x = 4,081,307,074.92/72,579.63
  6. Step 6: Final answer
    x = 56,232.13

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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.