Home / 72,417.14-99,933.95-40,151.60

Finding the Fourth Proportional to 72,417.14, 99,933.95 and 40,151.60

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Solution

The fourth proportional to 72,417.14, 99,933.95 and 40,151.60 is: 55,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417.14 : 99,933.95 = 40,151.60 : x
  2. Step 2: Convert to fraction form
    72,417.14/99,933.95 = 40,151.60/x
  3. Step 3: Cross multiply
    72,417.14x = 99,933.95 × 40,151.60
  4. Step 4: Simplify right side
    72,417.14x = 4,012,507,786.06
  5. Step 5: Solve for x
    x = 4,012,507,786.06/72,417.14
  6. Step 6: Final answer
    x = 55,408.26

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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.