Home / 51,647.24-71,296.80-39,706.40

Finding the Fourth Proportional to 51,647.24, 71,296.80 and 39,706.40

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Solution

The fourth proportional to 51,647.24, 71,296.80 and 39,706.40 is: 54,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,647.24 : 71,296.80 = 39,706.40 : x
  2. Step 2: Convert to fraction form
    51,647.24/71,296.80 = 39,706.40/x
  3. Step 3: Cross multiply
    51,647.24x = 71,296.80 × 39,706.40
  4. Step 4: Simplify right side
    51,647.24x = 2,830,939,259.52
  5. Step 5: Solve for x
    x = 2,830,939,259.52/51,647.24
  6. Step 6: Final answer
    x = 54,812.98

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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.