Home / 72,055.79-99,438.66-45,199.43

Finding the Fourth Proportional to 72,055.79, 99,438.66 and 45,199.43

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Solution

The fourth proportional to 72,055.79, 99,438.66 and 45,199.43 is: 62,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,055.79 : 99,438.66 = 45,199.43 : x
  2. Step 2: Convert to fraction form
    72,055.79/99,438.66 = 45,199.43/x
  3. Step 3: Cross multiply
    72,055.79x = 99,438.66 × 45,199.43
  4. Step 4: Simplify right side
    72,055.79x = 4,494,570,751.96
  5. Step 5: Solve for x
    x = 4,494,570,751.96/72,055.79
  6. Step 6: Final answer
    x = 62,376.26

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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.