Home / 92,823.06-128,066.40-54,570.36

Finding the Fourth Proportional to 92,823.06, 128,066.40 and 54,570.36

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Solution

The fourth proportional to 92,823.06, 128,066.40 and 54,570.36 is: 75,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,823.06 : 128,066.40 = 54,570.36 : x
  2. Step 2: Convert to fraction form
    92,823.06/128,066.40 = 54,570.36/x
  3. Step 3: Cross multiply
    92,823.06x = 128,066.40 × 54,570.36
  4. Step 4: Simplify right side
    92,823.06x = 6,988,629,551.90
  5. Step 5: Solve for x
    x = 6,988,629,551.90/92,823.06
  6. Step 6: Final answer
    x = 75,289.80

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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.