Home / 74,600.10-111,900.15-62,790.30

Finding the Fourth Proportional to 74,600.10, 111,900.15 and 62,790.30

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Solution

The fourth proportional to 74,600.10, 111,900.15 and 62,790.30 is: 94,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,600.10 : 111,900.15 = 62,790.30 : x
  2. Step 2: Convert to fraction form
    74,600.10/111,900.15 = 62,790.30/x
  3. Step 3: Cross multiply
    74,600.10x = 111,900.15 × 62,790.30
  4. Step 4: Simplify right side
    74,600.10x = 7,026,243,988.55
  5. Step 5: Solve for x
    x = 7,026,243,988.55/74,600.10
  6. Step 6: Final answer
    x = 94,185.45

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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.