Home / 55,434.16-83,140.30-19,894.50

Finding the Fourth Proportional to 55,434.16, 83,140.30 and 19,894.50

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Solution

The fourth proportional to 55,434.16, 83,140.30 and 19,894.50 is: 29,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,434.16 : 83,140.30 = 19,894.50 : x
  2. Step 2: Convert to fraction form
    55,434.16/83,140.30 = 19,894.50/x
  3. Step 3: Cross multiply
    55,434.16x = 83,140.30 × 19,894.50
  4. Step 4: Simplify right side
    55,434.16x = 1,654,034,698.35
  5. Step 5: Solve for x
    x = 1,654,034,698.35/55,434.16
  6. Step 6: Final answer
    x = 29,837.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.