Home / 85,330.64-117,756.15-47,090.19

Finding the Fourth Proportional to 85,330.64, 117,756.15 and 47,090.19

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Solution

The fourth proportional to 85,330.64, 117,756.15 and 47,090.19 is: 64,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.64 : 117,756.15 = 47,090.19 : x
  2. Step 2: Convert to fraction form
    85,330.64/117,756.15 = 47,090.19/x
  3. Step 3: Cross multiply
    85,330.64x = 117,756.15 × 47,090.19
  4. Step 4: Simplify right side
    85,330.64x = 5,545,159,477.17
  5. Step 5: Solve for x
    x = 5,545,159,477.17/85,330.64
  6. Step 6: Final answer
    x = 64,984.39

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Double scale
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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.