Home / 66,318.99-91,506.02-39,456.25

Finding the Fourth Proportional to 66,318.99, 91,506.02 and 39,456.25

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Solution

The fourth proportional to 66,318.99, 91,506.02 and 39,456.25 is: 54,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,318.99 : 91,506.02 = 39,456.25 : x
  2. Step 2: Convert to fraction form
    66,318.99/91,506.02 = 39,456.25/x
  3. Step 3: Cross multiply
    66,318.99x = 91,506.02 × 39,456.25
  4. Step 4: Simplify right side
    66,318.99x = 3,610,484,417.11
  5. Step 5: Solve for x
    x = 3,610,484,417.11/66,318.99
  6. Step 6: Final answer
    x = 54,441.18

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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.