Home / 66,071.04-91,148.16-39,214.56

Finding the Fourth Proportional to 66,071.04, 91,148.16 and 39,214.56

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Solution

The fourth proportional to 66,071.04, 91,148.16 and 39,214.56 is: 54,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,071.04 : 91,148.16 = 39,214.56 : x
  2. Step 2: Convert to fraction form
    66,071.04/91,148.16 = 39,214.56/x
  3. Step 3: Cross multiply
    66,071.04x = 91,148.16 × 39,214.56
  4. Step 4: Simplify right side
    66,071.04x = 3,574,334,989.21
  5. Step 5: Solve for x
    x = 3,574,334,989.21/66,071.04
  6. Step 6: Final answer
    x = 54,098.36

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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.