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Finding the Fourth Proportional to 72,900.16, 100,590.03 and 40,627.71

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Solution

The fourth proportional to 72,900.16, 100,590.03 and 40,627.71 is: 56,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,900.16 : 100,590.03 = 40,627.71 : x
  2. Step 2: Convert to fraction form
    72,900.16/100,590.03 = 40,627.71/x
  3. Step 3: Cross multiply
    72,900.16x = 100,590.03 × 40,627.71
  4. Step 4: Simplify right side
    72,900.16x = 4,086,742,567.73
  5. Step 5: Solve for x
    x = 4,086,742,567.73/72,900.16
  6. Step 6: Final answer
    x = 56,059.45

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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.