Home / 66,927.80-92,363.26-40,065.12

Finding the Fourth Proportional to 66,927.80, 92,363.26 and 40,065.12

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Solution

The fourth proportional to 66,927.80, 92,363.26 and 40,065.12 is: 55,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927.80 : 92,363.26 = 40,065.12 : x
  2. Step 2: Convert to fraction form
    66,927.80/92,363.26 = 40,065.12/x
  3. Step 3: Cross multiply
    66,927.80x = 92,363.26 × 40,065.12
  4. Step 4: Simplify right side
    66,927.80x = 3,700,545,095.49
  5. Step 5: Solve for x
    x = 3,700,545,095.49/66,927.80
  6. Step 6: Final answer
    x = 55,291.60

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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.