Home / 72,027.60-99,386.28-40,195.60

Finding the Fourth Proportional to 72,027.60, 99,386.28 and 40,195.60

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Solution

The fourth proportional to 72,027.60, 99,386.28 and 40,195.60 is: 55,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.60 : 99,386.28 = 40,195.60 : x
  2. Step 2: Convert to fraction form
    72,027.60/99,386.28 = 40,195.60/x
  3. Step 3: Cross multiply
    72,027.60x = 99,386.28 × 40,195.60
  4. Step 4: Simplify right side
    72,027.60x = 3,994,891,156.37
  5. Step 5: Solve for x
    x = 3,994,891,156.37/72,027.60
  6. Step 6: Final answer
    x = 55,463.34

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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.