Home / 56,484.16-77,949.18-30,991.84

Finding the Fourth Proportional to 56,484.16, 77,949.18 and 30,991.84

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Solution

The fourth proportional to 56,484.16, 77,949.18 and 30,991.84 is: 42,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,484.16 : 77,949.18 = 30,991.84 : x
  2. Step 2: Convert to fraction form
    56,484.16/77,949.18 = 30,991.84/x
  3. Step 3: Cross multiply
    56,484.16x = 77,949.18 × 30,991.84
  4. Step 4: Simplify right side
    56,484.16x = 2,415,788,514.69
  5. Step 5: Solve for x
    x = 2,415,788,514.69/56,484.16
  6. Step 6: Final answer
    x = 42,769.31

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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.