Home / 42,887.70-64,402.83-28,937.49

Finding the Fourth Proportional to 42,887.70, 64,402.83 and 28,937.49

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Solution

The fourth proportional to 42,887.70, 64,402.83 and 28,937.49 is: 43,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,887.70 : 64,402.83 = 28,937.49 : x
  2. Step 2: Convert to fraction form
    42,887.70/64,402.83 = 28,937.49/x
  3. Step 3: Cross multiply
    42,887.70x = 64,402.83 × 28,937.49
  4. Step 4: Simplify right side
    42,887.70x = 1,863,656,249.10
  5. Step 5: Solve for x
    x = 1,863,656,249.10/42,887.70
  6. Step 6: Final answer
    x = 43,454.33

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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.