Home / 79,666.04-109,940.40-45,677.52

Finding the Fourth Proportional to 79,666.04, 109,940.40 and 45,677.52

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Solution

The fourth proportional to 79,666.04, 109,940.40 and 45,677.52 is: 63,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,666.04 : 109,940.40 = 45,677.52 : x
  2. Step 2: Convert to fraction form
    79,666.04/109,940.40 = 45,677.52/x
  3. Step 3: Cross multiply
    79,666.04x = 109,940.40 × 45,677.52
  4. Step 4: Simplify right side
    79,666.04x = 5,021,804,819.81
  5. Step 5: Solve for x
    x = 5,021,804,819.81/79,666.04
  6. Step 6: Final answer
    x = 63,035.70

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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.