Home / 43,402.16-65,055.36-28,403.12

Finding the Fourth Proportional to 43,402.16, 65,055.36 and 28,403.12

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Solution

The fourth proportional to 43,402.16, 65,055.36 and 28,403.12 is: 42,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,402.16 : 65,055.36 = 28,403.12 : x
  2. Step 2: Convert to fraction form
    43,402.16/65,055.36 = 28,403.12/x
  3. Step 3: Cross multiply
    43,402.16x = 65,055.36 × 28,403.12
  4. Step 4: Simplify right side
    43,402.16x = 1,847,775,196.72
  5. Step 5: Solve for x
    x = 1,847,775,196.72/43,402.16
  6. Step 6: Final answer
    x = 42,573.35

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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.