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Finding the Fourth Proportional to 70,580.40, 97,401.11 and 38,751.35

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Solution

The fourth proportional to 70,580.40, 97,401.11 and 38,751.35 is: 53,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,580.40 : 97,401.11 = 38,751.35 : x
  2. Step 2: Convert to fraction form
    70,580.40/97,401.11 = 38,751.35/x
  3. Step 3: Cross multiply
    70,580.40x = 97,401.11 × 38,751.35
  4. Step 4: Simplify right side
    70,580.40x = 3,774,424,369.16
  5. Step 5: Solve for x
    x = 3,774,424,369.16/70,580.40
  6. Step 6: Final answer
    x = 53,476.95

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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.