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Finding the Fourth Proportional to 86,951.48, 130,374.74 and 47,453.72

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Solution

The fourth proportional to 86,951.48, 130,374.74 and 47,453.72 is: 71,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,951.48 : 130,374.74 = 47,453.72 : x
  2. Step 2: Convert to fraction form
    86,951.48/130,374.74 = 47,453.72/x
  3. Step 3: Cross multiply
    86,951.48x = 130,374.74 × 47,453.72
  4. Step 4: Simplify right side
    86,951.48x = 6,186,766,407.03
  5. Step 5: Solve for x
    x = 6,186,766,407.03/86,951.48
  6. Step 6: Final answer
    x = 71,151.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.