Home / 72,268.95-99,735.53-40,437.17

Finding the Fourth Proportional to 72,268.95, 99,735.53 and 40,437.17

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Solution

The fourth proportional to 72,268.95, 99,735.53 and 40,437.17 is: 55,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,268.95 : 99,735.53 = 40,437.17 : x
  2. Step 2: Convert to fraction form
    72,268.95/99,735.53 = 40,437.17/x
  3. Step 3: Cross multiply
    72,268.95x = 99,735.53 × 40,437.17
  4. Step 4: Simplify right side
    72,268.95x = 4,033,021,880.79
  5. Step 5: Solve for x
    x = 4,033,021,880.79/72,268.95
  6. Step 6: Final answer
    x = 55,805.74

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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.