Home / 52,403.42-78,643.20-39,291.14

Finding the Fourth Proportional to 52,403.42, 78,643.20 and 39,291.14

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Solution

The fourth proportional to 52,403.42, 78,643.20 and 39,291.14 is: 58,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,403.42 : 78,643.20 = 39,291.14 : x
  2. Step 2: Convert to fraction form
    52,403.42/78,643.20 = 39,291.14/x
  3. Step 3: Cross multiply
    52,403.42x = 78,643.20 × 39,291.14
  4. Step 4: Simplify right side
    52,403.42x = 3,089,980,981.25
  5. Step 5: Solve for x
    x = 3,089,980,981.25/52,403.42
  6. Step 6: Final answer
    x = 58,965.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.