Home / 52,639.42-72,643.35-28,767.10

Finding the Fourth Proportional to 52,639.42, 72,643.35 and 28,767.10

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Solution

The fourth proportional to 52,639.42, 72,643.35 and 28,767.10 is: 39,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.42 : 72,643.35 = 28,767.10 : x
  2. Step 2: Convert to fraction form
    52,639.42/72,643.35 = 28,767.10/x
  3. Step 3: Cross multiply
    52,639.42x = 72,643.35 × 28,767.10
  4. Step 4: Simplify right side
    52,639.42x = 2,089,738,513.79
  5. Step 5: Solve for x
    x = 2,089,738,513.79/52,639.42
  6. Step 6: Final answer
    x = 39,699.12

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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.