Home / 85,707.42-118,262.16-53,853.76

Finding the Fourth Proportional to 85,707.42, 118,262.16 and 53,853.76

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Solution

The fourth proportional to 85,707.42, 118,262.16 and 53,853.76 is: 74,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,707.42 : 118,262.16 = 53,853.76 : x
  2. Step 2: Convert to fraction form
    85,707.42/118,262.16 = 53,853.76/x
  3. Step 3: Cross multiply
    85,707.42x = 118,262.16 × 53,853.76
  4. Step 4: Simplify right side
    85,707.42x = 6,368,861,981.72
  5. Step 5: Solve for x
    x = 6,368,861,981.72/85,707.42
  6. Step 6: Final answer
    x = 74,309.34

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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.