Home / 42,785.64-64,176.66-28,751.64

Finding the Fourth Proportional to 42,785.64, 64,176.66 and 28,751.64

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Solution

The fourth proportional to 42,785.64, 64,176.66 and 28,751.64 is: 43,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.64 : 64,176.66 = 28,751.64 : x
  2. Step 2: Convert to fraction form
    42,785.64/64,176.66 = 28,751.64/x
  3. Step 3: Cross multiply
    42,785.64x = 64,176.66 × 28,751.64
  4. Step 4: Simplify right side
    42,785.64x = 1,845,184,224.72
  5. Step 5: Solve for x
    x = 1,845,184,224.72/42,785.64
  6. Step 6: Final answer
    x = 43,126.25

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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.