Home / 55,800.20-83,700.30-18,864.20

Finding the Fourth Proportional to 55,800.20, 83,700.30 and 18,864.20

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Solution

The fourth proportional to 55,800.20, 83,700.30 and 18,864.20 is: 28,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,800.20 : 83,700.30 = 18,864.20 : x
  2. Step 2: Convert to fraction form
    55,800.20/83,700.30 = 18,864.20/x
  3. Step 3: Cross multiply
    55,800.20x = 83,700.30 × 18,864.20
  4. Step 4: Simplify right side
    55,800.20x = 1,578,939,199.26
  5. Step 5: Solve for x
    x = 1,578,939,199.26/55,800.20
  6. Step 6: Final answer
    x = 28,296.30

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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.