Home / 72,533.28-100,101.12-40,269.60

Finding the Fourth Proportional to 72,533.28, 100,101.12 and 40,269.60

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Solution

The fourth proportional to 72,533.28, 100,101.12 and 40,269.60 is: 55,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,533.28 : 100,101.12 = 40,269.60 : x
  2. Step 2: Convert to fraction form
    72,533.28/100,101.12 = 40,269.60/x
  3. Step 3: Cross multiply
    72,533.28x = 100,101.12 × 40,269.60
  4. Step 4: Simplify right side
    72,533.28x = 4,031,032,061.95
  5. Step 5: Solve for x
    x = 4,031,032,061.95/72,533.28
  6. Step 6: Final answer
    x = 55,574.93

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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.