Home / 55,836.36-77,053.20-30,685.32

Finding the Fourth Proportional to 55,836.36, 77,053.20 and 30,685.32

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Solution

The fourth proportional to 55,836.36, 77,053.20 and 30,685.32 is: 42,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,836.36 : 77,053.20 = 30,685.32 : x
  2. Step 2: Convert to fraction form
    55,836.36/77,053.20 = 30,685.32/x
  3. Step 3: Cross multiply
    55,836.36x = 77,053.20 × 30,685.32
  4. Step 4: Simplify right side
    55,836.36x = 2,364,402,099.02
  5. Step 5: Solve for x
    x = 2,364,402,099.02/55,836.36
  6. Step 6: Final answer
    x = 42,345.20

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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.