Home / 71,319.51-98,422.47-39,055.50

Finding the Fourth Proportional to 71,319.51, 98,422.47 and 39,055.50

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Solution

The fourth proportional to 71,319.51, 98,422.47 and 39,055.50 is: 53,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,319.51 : 98,422.47 = 39,055.50 : x
  2. Step 2: Convert to fraction form
    71,319.51/98,422.47 = 39,055.50/x
  3. Step 3: Cross multiply
    71,319.51x = 98,422.47 × 39,055.50
  4. Step 4: Simplify right side
    71,319.51x = 3,843,938,777.09
  5. Step 5: Solve for x
    x = 3,843,938,777.09/71,319.51
  6. Step 6: Final answer
    x = 53,897.44

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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.