Home / 71,043.12-98,038.56-39,211.32

Finding the Fourth Proportional to 71,043.12, 98,038.56 and 39,211.32

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Solution

The fourth proportional to 71,043.12, 98,038.56 and 39,211.32 is: 54,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043.12 : 98,038.56 = 39,211.32 : x
  2. Step 2: Convert to fraction form
    71,043.12/98,038.56 = 39,211.32/x
  3. Step 3: Cross multiply
    71,043.12x = 98,038.56 × 39,211.32
  4. Step 4: Simplify right side
    71,043.12x = 3,844,221,348.50
  5. Step 5: Solve for x
    x = 3,844,221,348.50/71,043.12
  6. Step 6: Final answer
    x = 54,111.10

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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.