Home / 85,302.10-117,720.38-47,066.05

Finding the Fourth Proportional to 85,302.10, 117,720.38 and 47,066.05

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Solution

The fourth proportional to 85,302.10, 117,720.38 and 47,066.05 is: 64,953.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.10 : 117,720.38 = 47,066.05 : x
  2. Step 2: Convert to fraction form
    85,302.10/117,720.38 = 47,066.05/x
  3. Step 3: Cross multiply
    85,302.10x = 117,720.38 × 47,066.05
  4. Step 4: Simplify right side
    85,302.10x = 5,540,633,114.46
  5. Step 5: Solve for x
    x = 5,540,633,114.46/85,302.10
  6. Step 6: Final answer
    x = 64,953.07

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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.