Home / 66,655.93-91,995.21-38,356.15

Finding the Fourth Proportional to 66,655.93, 91,995.21 and 38,356.15

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Solution

The fourth proportional to 66,655.93, 91,995.21 and 38,356.15 is: 52,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.93 : 91,995.21 = 38,356.15 : x
  2. Step 2: Convert to fraction form
    66,655.93/91,995.21 = 38,356.15/x
  3. Step 3: Cross multiply
    66,655.93x = 91,995.21 × 38,356.15
  4. Step 4: Simplify right side
    66,655.93x = 3,528,582,074.04
  5. Step 5: Solve for x
    x = 3,528,582,074.04/66,655.93
  6. Step 6: Final answer
    x = 52,937.26

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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.