Home / 55,963.08-77,228.91-30,812.58

Finding the Fourth Proportional to 55,963.08, 77,228.91 and 30,812.58

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Solution

The fourth proportional to 55,963.08, 77,228.91 and 30,812.58 is: 42,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.08 : 77,228.91 = 30,812.58 : x
  2. Step 2: Convert to fraction form
    55,963.08/77,228.91 = 30,812.58/x
  3. Step 3: Cross multiply
    55,963.08x = 77,228.91 × 30,812.58
  4. Step 4: Simplify right side
    55,963.08x = 2,379,621,967.69
  5. Step 5: Solve for x
    x = 2,379,621,967.69/55,963.08
  6. Step 6: Final answer
    x = 42,521.28

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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.