Home / 70,971.84-97,941.08-39,140.75

Finding the Fourth Proportional to 70,971.84, 97,941.08 and 39,140.75

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Solution

The fourth proportional to 70,971.84, 97,941.08 and 39,140.75 is: 54,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,971.84 : 97,941.08 = 39,140.75 : x
  2. Step 2: Convert to fraction form
    70,971.84/97,941.08 = 39,140.75/x
  3. Step 3: Cross multiply
    70,971.84x = 97,941.08 × 39,140.75
  4. Step 4: Simplify right side
    70,971.84x = 3,833,486,641.60
  5. Step 5: Solve for x
    x = 3,833,486,641.60/70,971.84
  6. Step 6: Final answer
    x = 54,014.19

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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.