Home / 55,835.52-77,053.08-30,685

Finding the Fourth Proportional to 55,835.52, 77,053.08 and 30,685

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Solution

The fourth proportional to 55,835.52, 77,053.08 and 30,685 is: 42,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,835.52 : 77,053.08 = 30,685 : x
  2. Step 2: Convert to fraction form
    55,835.52/77,053.08 = 30,685/x
  3. Step 3: Cross multiply
    55,835.52x = 77,053.08 × 30,685
  4. Step 4: Simplify right side
    55,835.52x = 2,364,373,759.80
  5. Step 5: Solve for x
    x = 2,364,373,759.80/55,835.52
  6. Step 6: Final answer
    x = 42,345.33

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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.