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Finding the Fourth Proportional to 101,801.04, 140,485.60 and 56,477.60

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Solution

The fourth proportional to 101,801.04, 140,485.60 and 56,477.60 is: 77,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,801.04 : 140,485.60 = 56,477.60 : x
  2. Step 2: Convert to fraction form
    101,801.04/140,485.60 = 56,477.60/x
  3. Step 3: Cross multiply
    101,801.04x = 140,485.60 × 56,477.60
  4. Step 4: Simplify right side
    101,801.04x = 7,934,289,522.56
  5. Step 5: Solve for x
    x = 7,934,289,522.56/101,801.04
  6. Step 6: Final answer
    x = 77,939.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.