Home / 55,953.18-77,215.68-30,802.68

Finding the Fourth Proportional to 55,953.18, 77,215.68 and 30,802.68

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Solution

The fourth proportional to 55,953.18, 77,215.68 and 30,802.68 is: 42,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,953.18 : 77,215.68 = 30,802.68 : x
  2. Step 2: Convert to fraction form
    55,953.18/77,215.68 = 30,802.68/x
  3. Step 3: Cross multiply
    55,953.18x = 77,215.68 × 30,802.68
  4. Step 4: Simplify right side
    55,953.18x = 2,378,449,882.02
  5. Step 5: Solve for x
    x = 2,378,449,882.02/55,953.18
  6. Step 6: Final answer
    x = 42,507.86

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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.