Home / 66,810.07-92,134.29-39,948.31

Finding the Fourth Proportional to 66,810.07, 92,134.29 and 39,948.31

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Solution

The fourth proportional to 66,810.07, 92,134.29 and 39,948.31 is: 55,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.07 : 92,134.29 = 39,948.31 : x
  2. Step 2: Convert to fraction form
    66,810.07/92,134.29 = 39,948.31/x
  3. Step 3: Cross multiply
    66,810.07x = 92,134.29 × 39,948.31
  4. Step 4: Simplify right side
    66,810.07x = 3,680,609,178.55
  5. Step 5: Solve for x
    x = 3,680,609,178.55/66,810.07
  6. Step 6: Final answer
    x = 55,090.63

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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.