Home / 70,931.40-97,885.30-39,100.82

Finding the Fourth Proportional to 70,931.40, 97,885.30 and 39,100.82

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Solution

The fourth proportional to 70,931.40, 97,885.30 and 39,100.82 is: 53,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.40 : 97,885.30 = 39,100.82 : x
  2. Step 2: Convert to fraction form
    70,931.40/97,885.30 = 39,100.82/x
  3. Step 3: Cross multiply
    70,931.40x = 97,885.30 × 39,100.82
  4. Step 4: Simplify right side
    70,931.40x = 3,827,395,495.95
  5. Step 5: Solve for x
    x = 3,827,395,495.95/70,931.40
  6. Step 6: Final answer
    x = 53,959.11

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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.