Home / 70,931.75-97,886.49-39,101.79

Finding the Fourth Proportional to 70,931.75, 97,886.49 and 39,101.79

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Solution

The fourth proportional to 70,931.75, 97,886.49 and 39,101.79 is: 53,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.75 : 97,886.49 = 39,101.79 : x
  2. Step 2: Convert to fraction form
    70,931.75/97,886.49 = 39,101.79/x
  3. Step 3: Cross multiply
    70,931.75x = 97,886.49 × 39,101.79
  4. Step 4: Simplify right side
    70,931.75x = 3,827,536,975.82
  5. Step 5: Solve for x
    x = 3,827,536,975.82/70,931.75
  6. Step 6: Final answer
    x = 53,960.85

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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.