Home / 66,985.23-92,436.17-39,762.46

Finding the Fourth Proportional to 66,985.23, 92,436.17 and 39,762.46

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Solution

The fourth proportional to 66,985.23, 92,436.17 and 39,762.46 is: 54,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,985.23 : 92,436.17 = 39,762.46 : x
  2. Step 2: Convert to fraction form
    66,985.23/92,436.17 = 39,762.46/x
  3. Step 3: Cross multiply
    66,985.23x = 92,436.17 × 39,762.46
  4. Step 4: Simplify right side
    66,985.23x = 3,675,489,842.67
  5. Step 5: Solve for x
    x = 3,675,489,842.67/66,985.23
  6. Step 6: Final answer
    x = 54,870.15

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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.