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Finding the Fourth Proportional to 67,619.61, 93,333.87 and 39,330.77

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Solution

The fourth proportional to 67,619.61, 93,333.87 and 39,330.77 is: 54,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,619.61 : 93,333.87 = 39,330.77 : x
  2. Step 2: Convert to fraction form
    67,619.61/93,333.87 = 39,330.77/x
  3. Step 3: Cross multiply
    67,619.61x = 93,333.87 × 39,330.77
  4. Step 4: Simplify right side
    67,619.61x = 3,670,892,507.51
  5. Step 5: Solve for x
    x = 3,670,892,507.51/67,619.61
  6. Step 6: Final answer
    x = 54,287.40

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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.