Home / 70,948.77-97,909.25-39,118.20

Finding the Fourth Proportional to 70,948.77, 97,909.25 and 39,118.20

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Solution

The fourth proportional to 70,948.77, 97,909.25 and 39,118.20 is: 53,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,948.77 : 97,909.25 = 39,118.20 : x
  2. Step 2: Convert to fraction form
    70,948.77/97,909.25 = 39,118.20/x
  3. Step 3: Cross multiply
    70,948.77x = 97,909.25 × 39,118.20
  4. Step 4: Simplify right side
    70,948.77x = 3,830,033,427.76
  5. Step 5: Solve for x
    x = 3,830,033,427.76/70,948.77
  6. Step 6: Final answer
    x = 53,983.08

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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.