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Finding the Fourth Proportional to 64,570.77, 89,108.51 and 39,076.83

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Solution

The fourth proportional to 64,570.77, 89,108.51 and 39,076.83 is: 53,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,570.77 : 89,108.51 = 39,076.83 : x
  2. Step 2: Convert to fraction form
    64,570.77/89,108.51 = 39,076.83/x
  3. Step 3: Cross multiply
    64,570.77x = 89,108.51 × 39,076.83
  4. Step 4: Simplify right side
    64,570.77x = 3,482,077,901.44
  5. Step 5: Solve for x
    x = 3,482,077,901.44/64,570.77
  6. Step 6: Final answer
    x = 53,926.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.