Home / 66,120.08-99,055.06-51,256.16

Finding the Fourth Proportional to 66,120.08, 99,055.06 and 51,256.16

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Solution

The fourth proportional to 66,120.08, 99,055.06 and 51,256.16 is: 76,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,120.08 : 99,055.06 = 51,256.16 : x
  2. Step 2: Convert to fraction form
    66,120.08/99,055.06 = 51,256.16/x
  3. Step 3: Cross multiply
    66,120.08x = 99,055.06 × 51,256.16
  4. Step 4: Simplify right side
    66,120.08x = 5,077,182,004.17
  5. Step 5: Solve for x
    x = 5,077,182,004.17/66,120.08
  6. Step 6: Final answer
    x = 76,787.29

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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.