Home / 71,331.51-98,437.40-39,500.37

Finding the Fourth Proportional to 71,331.51, 98,437.40 and 39,500.37

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Solution

The fourth proportional to 71,331.51, 98,437.40 and 39,500.37 is: 54,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.51 : 98,437.40 = 39,500.37 : x
  2. Step 2: Convert to fraction form
    71,331.51/98,437.40 = 39,500.37/x
  3. Step 3: Cross multiply
    71,331.51x = 98,437.40 × 39,500.37
  4. Step 4: Simplify right side
    71,331.51x = 3,888,313,524.34
  5. Step 5: Solve for x
    x = 3,888,313,524.34/71,331.51
  6. Step 6: Final answer
    x = 54,510.46

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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.