Home / 81,358.59-121,571.43-62,017.35

Finding the Fourth Proportional to 81,358.59, 121,571.43 and 62,017.35

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Solution

The fourth proportional to 81,358.59, 121,571.43 and 62,017.35 is: 92,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,358.59 : 121,571.43 = 62,017.35 : x
  2. Step 2: Convert to fraction form
    81,358.59/121,571.43 = 62,017.35/x
  3. Step 3: Cross multiply
    81,358.59x = 121,571.43 × 62,017.35
  4. Step 4: Simplify right side
    81,358.59x = 7,539,537,924.31
  5. Step 5: Solve for x
    x = 7,539,537,924.31/81,358.59
  6. Step 6: Final answer
    x = 92,670.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.