Home / 85,811.73-118,421.39-47,053.20

Finding the Fourth Proportional to 85,811.73, 118,421.39 and 47,053.20

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Solution

The fourth proportional to 85,811.73, 118,421.39 and 47,053.20 is: 64,934.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,811.73 : 118,421.39 = 47,053.20 : x
  2. Step 2: Convert to fraction form
    85,811.73/118,421.39 = 47,053.20/x
  3. Step 3: Cross multiply
    85,811.73x = 118,421.39 × 47,053.20
  4. Step 4: Simplify right side
    85,811.73x = 5,572,105,112.68
  5. Step 5: Solve for x
    x = 5,572,105,112.68/85,811.73
  6. Step 6: Final answer
    x = 64,934.07

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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.