Home / 56,090.13-77,403.15-30,939.63

Finding the Fourth Proportional to 56,090.13, 77,403.15 and 30,939.63

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Solution

The fourth proportional to 56,090.13, 77,403.15 and 30,939.63 is: 42,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,090.13 : 77,403.15 = 30,939.63 : x
  2. Step 2: Convert to fraction form
    56,090.13/77,403.15 = 30,939.63/x
  3. Step 3: Cross multiply
    56,090.13x = 77,403.15 × 30,939.63
  4. Step 4: Simplify right side
    56,090.13x = 2,394,824,821.83
  5. Step 5: Solve for x
    x = 2,394,824,821.83/56,090.13
  6. Step 6: Final answer
    x = 42,696.01

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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.