Home / 85,313.56-117,732.40-47,587.76

Finding the Fourth Proportional to 85,313.56, 117,732.40 and 47,587.76

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Solution

The fourth proportional to 85,313.56, 117,732.40 and 47,587.76 is: 65,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,313.56 : 117,732.40 = 47,587.76 : x
  2. Step 2: Convert to fraction form
    85,313.56/117,732.40 = 47,587.76/x
  3. Step 3: Cross multiply
    85,313.56x = 117,732.40 × 47,587.76
  4. Step 4: Simplify right side
    85,313.56x = 5,602,621,195.42
  5. Step 5: Solve for x
    x = 5,602,621,195.42/85,313.56
  6. Step 6: Final answer
    x = 65,670.93

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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.