Home / 66,448.13-99,616.10-28,980.72

Finding the Fourth Proportional to 66,448.13, 99,616.10 and 28,980.72

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Solution

The fourth proportional to 66,448.13, 99,616.10 and 28,980.72 is: 43,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448.13 : 99,616.10 = 28,980.72 : x
  2. Step 2: Convert to fraction form
    66,448.13/99,616.10 = 28,980.72/x
  3. Step 3: Cross multiply
    66,448.13x = 99,616.10 × 28,980.72
  4. Step 4: Simplify right side
    66,448.13x = 2,886,946,156.69
  5. Step 5: Solve for x
    x = 2,886,946,156.69/66,448.13
  6. Step 6: Final answer
    x = 43,446.62

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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.