Home / 101,731.77-140,390.15-56,412.95

Finding the Fourth Proportional to 101,731.77, 140,390.15 and 56,412.95

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Solution

The fourth proportional to 101,731.77, 140,390.15 and 56,412.95 is: 77,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.77 : 140,390.15 = 56,412.95 : x
  2. Step 2: Convert to fraction form
    101,731.77/140,390.15 = 56,412.95/x
  3. Step 3: Cross multiply
    101,731.77x = 140,390.15 × 56,412.95
  4. Step 4: Simplify right side
    101,731.77x = 7,919,821,528.43
  5. Step 5: Solve for x
    x = 7,919,821,528.43/101,731.77
  6. Step 6: Final answer
    x = 77,850.03

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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.