Home / 66,254.04-91,399.86-39,381.48

Finding the Fourth Proportional to 66,254.04, 91,399.86 and 39,381.48

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Solution

The fourth proportional to 66,254.04, 91,399.86 and 39,381.48 is: 54,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.04 : 91,399.86 = 39,381.48 : x
  2. Step 2: Convert to fraction form
    66,254.04/91,399.86 = 39,381.48/x
  3. Step 3: Cross multiply
    66,254.04x = 91,399.86 × 39,381.48
  4. Step 4: Simplify right side
    66,254.04x = 3,599,461,758.59
  5. Step 5: Solve for x
    x = 3,599,461,758.59/66,254.04
  6. Step 6: Final answer
    x = 54,328.19

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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.