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Finding the Fourth Proportional to 55,798.56, 77,001.30 and 30,646.44

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Solution

The fourth proportional to 55,798.56, 77,001.30 and 30,646.44 is: 42,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,798.56 : 77,001.30 = 30,646.44 : x
  2. Step 2: Convert to fraction form
    55,798.56/77,001.30 = 30,646.44/x
  3. Step 3: Cross multiply
    55,798.56x = 77,001.30 × 30,646.44
  4. Step 4: Simplify right side
    55,798.56x = 2,359,815,720.37
  5. Step 5: Solve for x
    x = 2,359,815,720.37/55,798.56
  6. Step 6: Final answer
    x = 42,291.70

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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.