Home / 42,717.02-64,039.05-30,197.66

Finding the Fourth Proportional to 42,717.02, 64,039.05 and 30,197.66

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Solution

The fourth proportional to 42,717.02, 64,039.05 and 30,197.66 is: 45,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,717.02 : 64,039.05 = 30,197.66 : x
  2. Step 2: Convert to fraction form
    42,717.02/64,039.05 = 30,197.66/x
  3. Step 3: Cross multiply
    42,717.02x = 64,039.05 × 30,197.66
  4. Step 4: Simplify right side
    42,717.02x = 1,933,829,138.43
  5. Step 5: Solve for x
    x = 1,933,829,138.43/42,717.02
  6. Step 6: Final answer
    x = 45,270.70

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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.