Home / 39,148.99-54,070.47-25,780.01

Finding the Fourth Proportional to 39,148.99, 54,070.47 and 25,780.01

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Solution

The fourth proportional to 39,148.99, 54,070.47 and 25,780.01 is: 35,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,148.99 : 54,070.47 = 25,780.01 : x
  2. Step 2: Convert to fraction form
    39,148.99/54,070.47 = 25,780.01/x
  3. Step 3: Cross multiply
    39,148.99x = 54,070.47 × 25,780.01
  4. Step 4: Simplify right side
    39,148.99x = 1,393,936,986.95
  5. Step 5: Solve for x
    x = 1,393,936,986.95/39,148.99
  6. Step 6: Final answer
    x = 35,605.95

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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.