Home / 72,430.26-99,948.68-40,166.52

Finding the Fourth Proportional to 72,430.26, 99,948.68 and 40,166.52

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Solution

The fourth proportional to 72,430.26, 99,948.68 and 40,166.52 is: 55,426.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430.26 : 99,948.68 = 40,166.52 : x
  2. Step 2: Convert to fraction form
    72,430.26/99,948.68 = 40,166.52/x
  3. Step 3: Cross multiply
    72,430.26x = 99,948.68 × 40,166.52
  4. Step 4: Simplify right side
    72,430.26x = 4,014,590,654.19
  5. Step 5: Solve for x
    x = 4,014,590,654.19/72,430.26
  6. Step 6: Final answer
    x = 55,426.98

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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.