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Finding the Fourth Proportional to 85,624.66, 118,159.61 and 47,385.79

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Solution

The fourth proportional to 85,624.66, 118,159.61 and 47,385.79 is: 65,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,624.66 : 118,159.61 = 47,385.79 : x
  2. Step 2: Convert to fraction form
    85,624.66/118,159.61 = 47,385.79/x
  3. Step 3: Cross multiply
    85,624.66x = 118,159.61 × 47,385.79
  4. Step 4: Simplify right side
    85,624.66x = 5,599,086,864.81
  5. Step 5: Solve for x
    x = 5,599,086,864.81/85,624.66
  6. Step 6: Final answer
    x = 65,391.05

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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.