Home / 85,110.48-117,399.24-61,199.28

Finding the Fourth Proportional to 85,110.48, 117,399.24 and 61,199.28

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Solution

The fourth proportional to 85,110.48, 117,399.24 and 61,199.28 is: 84,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.48 : 117,399.24 = 61,199.28 : x
  2. Step 2: Convert to fraction form
    85,110.48/117,399.24 = 61,199.28/x
  3. Step 3: Cross multiply
    85,110.48x = 117,399.24 × 61,199.28
  4. Step 4: Simplify right side
    85,110.48x = 7,184,748,960.55
  5. Step 5: Solve for x
    x = 7,184,748,960.55/85,110.48
  6. Step 6: Final answer
    x = 84,416.74

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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.