Home / 74,640.10-111,632.10-62,830.30

Finding the Fourth Proportional to 74,640.10, 111,632.10 and 62,830.30

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Solution

The fourth proportional to 74,640.10, 111,632.10 and 62,830.30 is: 93,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,640.10 : 111,632.10 = 62,830.30 : x
  2. Step 2: Convert to fraction form
    74,640.10/111,632.10 = 62,830.30/x
  3. Step 3: Cross multiply
    74,640.10x = 111,632.10 × 62,830.30
  4. Step 4: Simplify right side
    74,640.10x = 7,013,878,332.63
  5. Step 5: Solve for x
    x = 7,013,878,332.63/74,640.10
  6. Step 6: Final answer
    x = 93,969.31

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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.