Home / 79,708.95-109,999.08-43,899.12

Finding the Fourth Proportional to 79,708.95, 109,999.08 and 43,899.12

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Solution

The fourth proportional to 79,708.95, 109,999.08 and 43,899.12 is: 60,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.95 : 109,999.08 = 43,899.12 : x
  2. Step 2: Convert to fraction form
    79,708.95/109,999.08 = 43,899.12/x
  3. Step 3: Cross multiply
    79,708.95x = 109,999.08 × 43,899.12
  4. Step 4: Simplify right side
    79,708.95x = 4,828,862,812.81
  5. Step 5: Solve for x
    x = 4,828,862,812.81/79,708.95
  6. Step 6: Final answer
    x = 60,581.19

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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.