Home / 70,750.19-97,634.75-38,918.40

Finding the Fourth Proportional to 70,750.19, 97,634.75 and 38,918.40

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Solution

The fourth proportional to 70,750.19, 97,634.75 and 38,918.40 is: 53,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.19 : 97,634.75 = 38,918.40 : x
  2. Step 2: Convert to fraction form
    70,750.19/97,634.75 = 38,918.40/x
  3. Step 3: Cross multiply
    70,750.19x = 97,634.75 × 38,918.40
  4. Step 4: Simplify right side
    70,750.19x = 3,799,788,059.81
  5. Step 5: Solve for x
    x = 3,799,788,059.81/70,750.19
  6. Step 6: Final answer
    x = 53,707.11

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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.