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Finding the Fourth Proportional to 85,448.48, 128,172.72 and 62,222.72

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Solution

The fourth proportional to 85,448.48, 128,172.72 and 62,222.72 is: 93,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,448.48 : 128,172.72 = 62,222.72 : x
  2. Step 2: Convert to fraction form
    85,448.48/128,172.72 = 62,222.72/x
  3. Step 3: Cross multiply
    85,448.48x = 128,172.72 × 62,222.72
  4. Step 4: Simplify right side
    85,448.48x = 7,975,255,268.20
  5. Step 5: Solve for x
    x = 7,975,255,268.20/85,448.48
  6. Step 6: Final answer
    x = 93,334.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.