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Finding the Fourth Proportional to 88,870.40, 122,653.68 and 54,435.68

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Solution

The fourth proportional to 88,870.40, 122,653.68 and 54,435.68 is: 75,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,870.40 : 122,653.68 = 54,435.68 : x
  2. Step 2: Convert to fraction form
    88,870.40/122,653.68 = 54,435.68/x
  3. Step 3: Cross multiply
    88,870.40x = 122,653.68 × 54,435.68
  4. Step 4: Simplify right side
    88,870.40x = 6,676,736,475.30
  5. Step 5: Solve for x
    x = 6,676,736,475.30/88,870.40
  6. Step 6: Final answer
    x = 75,128.91

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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.