Home / 70,948.80-97,909.26-39,118.20

Finding the Fourth Proportional to 70,948.80, 97,909.26 and 39,118.20

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Solution

The fourth proportional to 70,948.80, 97,909.26 and 39,118.20 is: 53,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,948.80 : 97,909.26 = 39,118.20 : x
  2. Step 2: Convert to fraction form
    70,948.80/97,909.26 = 39,118.20/x
  3. Step 3: Cross multiply
    70,948.80x = 97,909.26 × 39,118.20
  4. Step 4: Simplify right side
    70,948.80x = 3,830,034,014.53
  5. Step 5: Solve for x
    x = 3,830,034,014.53/70,948.80
  6. Step 6: Final answer
    x = 53,983.07

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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.