Home / 70,947.28-97,907.88-39,117.32

Finding the Fourth Proportional to 70,947.28, 97,907.88 and 39,117.32

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Solution

The fourth proportional to 70,947.28, 97,907.88 and 39,117.32 is: 53,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.28 : 97,907.88 = 39,117.32 : x
  2. Step 2: Convert to fraction form
    70,947.28/97,907.88 = 39,117.32/x
  3. Step 3: Cross multiply
    70,947.28x = 97,907.88 × 39,117.32
  4. Step 4: Simplify right side
    70,947.28x = 3,829,893,872.48
  5. Step 5: Solve for x
    x = 3,829,893,872.48/70,947.28
  6. Step 6: Final answer
    x = 53,982.25

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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.