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Finding the Fourth Proportional to 42,784.47, 64,176.71 and 41,800.32

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Solution

The fourth proportional to 42,784.47, 64,176.71 and 41,800.32 is: 62,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,784.47 : 64,176.71 = 41,800.32 : x
  2. Step 2: Convert to fraction form
    42,784.47/64,176.71 = 41,800.32/x
  3. Step 3: Cross multiply
    42,784.47x = 64,176.71 × 41,800.32
  4. Step 4: Simplify right side
    42,784.47x = 2,682,606,805.55
  5. Step 5: Solve for x
    x = 2,682,606,805.55/42,784.47
  6. Step 6: Final answer
    x = 62,700.48

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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.