Home / 42,763.47-64,155.66-30,137.86

Finding the Fourth Proportional to 42,763.47, 64,155.66 and 30,137.86

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Solution

The fourth proportional to 42,763.47, 64,155.66 and 30,137.86 is: 45,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,763.47 : 64,155.66 = 30,137.86 : x
  2. Step 2: Convert to fraction form
    42,763.47/64,155.66 = 30,137.86/x
  3. Step 3: Cross multiply
    42,763.47x = 64,155.66 × 30,137.86
  4. Step 4: Simplify right side
    42,763.47x = 1,933,514,492.50
  5. Step 5: Solve for x
    x = 1,933,514,492.50/42,763.47
  6. Step 6: Final answer
    x = 45,214.16

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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.