Home / 66,561.74-91,803.27-42,690.23

Finding the Fourth Proportional to 66,561.74, 91,803.27 and 42,690.23

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Solution

The fourth proportional to 66,561.74, 91,803.27 and 42,690.23 is: 58,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,561.74 : 91,803.27 = 42,690.23 : x
  2. Step 2: Convert to fraction form
    66,561.74/91,803.27 = 42,690.23/x
  3. Step 3: Cross multiply
    66,561.74x = 91,803.27 × 42,690.23
  4. Step 4: Simplify right side
    66,561.74x = 3,919,102,252.04
  5. Step 5: Solve for x
    x = 3,919,102,252.04/66,561.74
  6. Step 6: Final answer
    x = 58,879.21

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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.