Home / 66,109.23-91,239.08-40,962.51

Finding the Fourth Proportional to 66,109.23, 91,239.08 and 40,962.51

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Solution

The fourth proportional to 66,109.23, 91,239.08 and 40,962.51 is: 56,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.23 : 91,239.08 = 40,962.51 : x
  2. Step 2: Convert to fraction form
    66,109.23/91,239.08 = 40,962.51/x
  3. Step 3: Cross multiply
    66,109.23x = 91,239.08 × 40,962.51
  4. Step 4: Simplify right side
    66,109.23x = 3,737,381,522.08
  5. Step 5: Solve for x
    x = 3,737,381,522.08/66,109.23
  6. Step 6: Final answer
    x = 56,533.43

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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.