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Finding the Fourth Proportional to 99,032.80, 148,568.40 and 49,784.80

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Solution

The fourth proportional to 99,032.80, 148,568.40 and 49,784.80 is: 74,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,032.80 : 148,568.40 = 49,784.80 : x
  2. Step 2: Convert to fraction form
    99,032.80/148,568.40 = 49,784.80/x
  3. Step 3: Cross multiply
    99,032.80x = 148,568.40 × 49,784.80
  4. Step 4: Simplify right side
    99,032.80x = 7,396,448,080.32
  5. Step 5: Solve for x
    x = 7,396,448,080.32/99,032.80
  6. Step 6: Final answer
    x = 74,686.85

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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.