Home / 70,948.12-97,909.07-39,118.16

Finding the Fourth Proportional to 70,948.12, 97,909.07 and 39,118.16

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Solution

The fourth proportional to 70,948.12, 97,909.07 and 39,118.16 is: 53,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,948.12 : 97,909.07 = 39,118.16 : x
  2. Step 2: Convert to fraction form
    70,948.12/97,909.07 = 39,118.16/x
  3. Step 3: Cross multiply
    70,948.12x = 97,909.07 × 39,118.16
  4. Step 4: Simplify right side
    70,948.12x = 3,830,022,665.71
  5. Step 5: Solve for x
    x = 3,830,022,665.71/70,948.12
  6. Step 6: Final answer
    x = 53,983.43

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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.