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Finding the Fourth Proportional to 68,661.55, 94,762.07 and 38,448.55

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Solution

The fourth proportional to 68,661.55, 94,762.07 and 38,448.55 is: 53,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661.55 : 94,762.07 = 38,448.55 : x
  2. Step 2: Convert to fraction form
    68,661.55/94,762.07 = 38,448.55/x
  3. Step 3: Cross multiply
    68,661.55x = 94,762.07 × 38,448.55
  4. Step 4: Simplify right side
    68,661.55x = 3,643,463,994.26
  5. Step 5: Solve for x
    x = 3,643,463,994.26/68,661.55
  6. Step 6: Final answer
    x = 53,064.11

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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.