Home / 71,389.42-98,515.93-39,557.64

Finding the Fourth Proportional to 71,389.42, 98,515.93 and 39,557.64

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Solution

The fourth proportional to 71,389.42, 98,515.93 and 39,557.64 is: 54,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.42 : 98,515.93 = 39,557.64 : x
  2. Step 2: Convert to fraction form
    71,389.42/98,515.93 = 39,557.64/x
  3. Step 3: Cross multiply
    71,389.42x = 98,515.93 × 39,557.64
  4. Step 4: Simplify right side
    71,389.42x = 3,897,057,693.21
  5. Step 5: Solve for x
    x = 3,897,057,693.21/71,389.42
  6. Step 6: Final answer
    x = 54,588.73

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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.