Home / 70,947.42-97,911.95-39,119.28

Finding the Fourth Proportional to 70,947.42, 97,911.95 and 39,119.28

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Solution

The fourth proportional to 70,947.42, 97,911.95 and 39,119.28 is: 53,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.42 : 97,911.95 = 39,119.28 : x
  2. Step 2: Convert to fraction form
    70,947.42/97,911.95 = 39,119.28/x
  3. Step 3: Cross multiply
    70,947.42x = 97,911.95 × 39,119.28
  4. Step 4: Simplify right side
    70,947.42x = 3,830,244,987.40
  5. Step 5: Solve for x
    x = 3,830,244,987.40/70,947.42
  6. Step 6: Final answer
    x = 53,987.09

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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.