Home / 55,856.49-77,080.01-30,705.81

Finding the Fourth Proportional to 55,856.49, 77,080.01 and 30,705.81

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Solution

The fourth proportional to 55,856.49, 77,080.01 and 30,705.81 is: 42,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,856.49 : 77,080.01 = 30,705.81 : x
  2. Step 2: Convert to fraction form
    55,856.49/77,080.01 = 30,705.81/x
  3. Step 3: Cross multiply
    55,856.49x = 77,080.01 × 30,705.81
  4. Step 4: Simplify right side
    55,856.49x = 2,366,803,988.33
  5. Step 5: Solve for x
    x = 2,366,803,988.33/55,856.49
  6. Step 6: Final answer
    x = 42,372.95

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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.