Home / 59,939.10-89,908.65-20,486.70

Finding the Fourth Proportional to 59,939.10, 89,908.65 and 20,486.70

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Solution

The fourth proportional to 59,939.10, 89,908.65 and 20,486.70 is: 30,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,939.10 : 89,908.65 = 20,486.70 : x
  2. Step 2: Convert to fraction form
    59,939.10/89,908.65 = 20,486.70/x
  3. Step 3: Cross multiply
    59,939.10x = 89,908.65 × 20,486.70
  4. Step 4: Simplify right side
    59,939.10x = 1,841,931,539.96
  5. Step 5: Solve for x
    x = 1,841,931,539.96/59,939.10
  6. Step 6: Final answer
    x = 30,730.05

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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.