Home / 74,975.94-103,500.10-57,071.70

Finding the Fourth Proportional to 74,975.94, 103,500.10 and 57,071.70

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Solution

The fourth proportional to 74,975.94, 103,500.10 and 57,071.70 is: 78,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.94 : 103,500.10 = 57,071.70 : x
  2. Step 2: Convert to fraction form
    74,975.94/103,500.10 = 57,071.70/x
  3. Step 3: Cross multiply
    74,975.94x = 103,500.10 × 57,071.70
  4. Step 4: Simplify right side
    74,975.94x = 5,906,926,657.17
  5. Step 5: Solve for x
    x = 5,906,926,657.17/74,975.94
  6. Step 6: Final answer
    x = 78,784.30

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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.