Home / 78,516.08-108,352.98-42,706.94

Finding the Fourth Proportional to 78,516.08, 108,352.98 and 42,706.94

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Solution

The fourth proportional to 78,516.08, 108,352.98 and 42,706.94 is: 58,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,516.08 : 108,352.98 = 42,706.94 : x
  2. Step 2: Convert to fraction form
    78,516.08/108,352.98 = 42,706.94/x
  3. Step 3: Cross multiply
    78,516.08x = 108,352.98 × 42,706.94
  4. Step 4: Simplify right side
    78,516.08x = 4,627,424,215.68
  5. Step 5: Solve for x
    x = 4,627,424,215.68/78,516.08
  6. Step 6: Final answer
    x = 58,936.01

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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.