Home / 70,749.84-97,636.29-38,918.74

Finding the Fourth Proportional to 70,749.84, 97,636.29 and 38,918.74

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Solution

The fourth proportional to 70,749.84, 97,636.29 and 38,918.74 is: 53,708.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.84 : 97,636.29 = 38,918.74 : x
  2. Step 2: Convert to fraction form
    70,749.84/97,636.29 = 38,918.74/x
  3. Step 3: Cross multiply
    70,749.84x = 97,636.29 × 38,918.74
  4. Step 4: Simplify right side
    70,749.84x = 3,799,880,702.30
  5. Step 5: Solve for x
    x = 3,799,880,702.30/70,749.84
  6. Step 6: Final answer
    x = 53,708.69

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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.