Home / 76,985.10-115,477.65-35,513.10

Finding the Fourth Proportional to 76,985.10, 115,477.65 and 35,513.10

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Solution

The fourth proportional to 76,985.10, 115,477.65 and 35,513.10 is: 53,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985.10 : 115,477.65 = 35,513.10 : x
  2. Step 2: Convert to fraction form
    76,985.10/115,477.65 = 35,513.10/x
  3. Step 3: Cross multiply
    76,985.10x = 115,477.65 × 35,513.10
  4. Step 4: Simplify right side
    76,985.10x = 4,100,969,332.22
  5. Step 5: Solve for x
    x = 4,100,969,332.22/76,985.10
  6. Step 6: Final answer
    x = 53,269.65

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1.5x scale

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.