Home / 66,085.56-91,208.04-42,228.12

Finding the Fourth Proportional to 66,085.56, 91,208.04 and 42,228.12

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Solution

The fourth proportional to 66,085.56, 91,208.04 and 42,228.12 is: 58,281.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,085.56 : 91,208.04 = 42,228.12 : x
  2. Step 2: Convert to fraction form
    66,085.56/91,208.04 = 42,228.12/x
  3. Step 3: Cross multiply
    66,085.56x = 91,208.04 × 42,228.12
  4. Step 4: Simplify right side
    66,085.56x = 3,851,544,058.08
  5. Step 5: Solve for x
    x = 3,851,544,058.08/66,085.56
  6. Step 6: Final answer
    x = 58,281.17

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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.