Home / 53,115.20-73,316.64-38,830.40

Finding the Fourth Proportional to 53,115.20, 73,316.64 and 38,830.40

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Solution

The fourth proportional to 53,115.20, 73,316.64 and 38,830.40 is: 53,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,115.20 : 73,316.64 = 38,830.40 : x
  2. Step 2: Convert to fraction form
    53,115.20/73,316.64 = 38,830.40/x
  3. Step 3: Cross multiply
    53,115.20x = 73,316.64 × 38,830.40
  4. Step 4: Simplify right side
    53,115.20x = 2,846,914,457.86
  5. Step 5: Solve for x
    x = 2,846,914,457.86/53,115.20
  6. Step 6: Final answer
    x = 53,598.87

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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.