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Finding the Fourth Proportional to 85,148.76, 117,510.66 and 47,422.92

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Solution

The fourth proportional to 85,148.76, 117,510.66 and 47,422.92 is: 65,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.76 : 117,510.66 = 47,422.92 : x
  2. Step 2: Convert to fraction form
    85,148.76/117,510.66 = 47,422.92/x
  3. Step 3: Cross multiply
    85,148.76x = 117,510.66 × 47,422.92
  4. Step 4: Simplify right side
    85,148.76x = 5,572,698,628.33
  5. Step 5: Solve for x
    x = 5,572,698,628.33/85,148.76
  6. Step 6: Final answer
    x = 65,446.62

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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.