Home / 79,191.08-109,280.84-45,201.32

Finding the Fourth Proportional to 79,191.08, 109,280.84 and 45,201.32

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Solution

The fourth proportional to 79,191.08, 109,280.84 and 45,201.32 is: 62,376.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,191.08 : 109,280.84 = 45,201.32 : x
  2. Step 2: Convert to fraction form
    79,191.08/109,280.84 = 45,201.32/x
  3. Step 3: Cross multiply
    79,191.08x = 109,280.84 × 45,201.32
  4. Step 4: Simplify right side
    79,191.08x = 4,939,638,218.71
  5. Step 5: Solve for x
    x = 4,939,638,218.71/79,191.08
  6. Step 6: Final answer
    x = 62,376.19

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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.