Home / 77,543.87-116,316.38-42,464.39

Finding the Fourth Proportional to 77,543.87, 116,316.38 and 42,464.39

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Solution

The fourth proportional to 77,543.87, 116,316.38 and 42,464.39 is: 63,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543.87 : 116,316.38 = 42,464.39 : x
  2. Step 2: Convert to fraction form
    77,543.87/116,316.38 = 42,464.39/x
  3. Step 3: Cross multiply
    77,543.87x = 116,316.38 × 42,464.39
  4. Step 4: Simplify right side
    77,543.87x = 4,939,303,648.29
  5. Step 5: Solve for x
    x = 4,939,303,648.29/77,543.87
  6. Step 6: Final answer
    x = 63,696.90

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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.