Home / 53,655.78-80,421.75-39,404.10

Finding the Fourth Proportional to 53,655.78, 80,421.75 and 39,404.10

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Solution

The fourth proportional to 53,655.78, 80,421.75 and 39,404.10 is: 59,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,655.78 : 80,421.75 = 39,404.10 : x
  2. Step 2: Convert to fraction form
    53,655.78/80,421.75 = 39,404.10/x
  3. Step 3: Cross multiply
    53,655.78x = 80,421.75 × 39,404.10
  4. Step 4: Simplify right side
    53,655.78x = 3,168,946,679.18
  5. Step 5: Solve for x
    x = 3,168,946,679.18/53,655.78
  6. Step 6: Final answer
    x = 59,060.68

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1.5x scale

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.