Home / 109,877.72-164,816.57-39,740.63

Finding the Fourth Proportional to 109,877.72, 164,816.57 and 39,740.63

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Solution

The fourth proportional to 109,877.72, 164,816.57 and 39,740.63 is: 59,610.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,877.72 : 164,816.57 = 39,740.63 : x
  2. Step 2: Convert to fraction form
    109,877.72/164,816.57 = 39,740.63/x
  3. Step 3: Cross multiply
    109,877.72x = 164,816.57 × 39,740.63
  4. Step 4: Simplify right side
    109,877.72x = 6,549,913,601.51
  5. Step 5: Solve for x
    x = 6,549,913,601.51/109,877.72
  6. Step 6: Final answer
    x = 59,610.94

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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.