Home / 66,079.06-99,138.03-26,615.86

Finding the Fourth Proportional to 66,079.06, 99,138.03 and 26,615.86

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Solution

The fourth proportional to 66,079.06, 99,138.03 and 26,615.86 is: 39,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,079.06 : 99,138.03 = 26,615.86 : x
  2. Step 2: Convert to fraction form
    66,079.06/99,138.03 = 26,615.86/x
  3. Step 3: Cross multiply
    66,079.06x = 99,138.03 × 26,615.86
  4. Step 4: Simplify right side
    66,079.06x = 2,638,643,927.16
  5. Step 5: Solve for x
    x = 2,638,643,927.16/66,079.06
  6. Step 6: Final answer
    x = 39,931.62

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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.