Home / 78,206.80-117,307.98-37,671.16

Finding the Fourth Proportional to 78,206.80, 117,307.98 and 37,671.16

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Solution

The fourth proportional to 78,206.80, 117,307.98 and 37,671.16 is: 56,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,206.80 : 117,307.98 = 37,671.16 : x
  2. Step 2: Convert to fraction form
    78,206.80/117,307.98 = 37,671.16/x
  3. Step 3: Cross multiply
    78,206.80x = 117,307.98 × 37,671.16
  4. Step 4: Simplify right side
    78,206.80x = 4,419,127,683.86
  5. Step 5: Solve for x
    x = 4,419,127,683.86/78,206.80
  6. Step 6: Final answer
    x = 56,505.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.