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Finding the Fourth Proportional to 70,378.37, 97,117.77 and 38,545.37

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Solution

The fourth proportional to 70,378.37, 97,117.77 and 38,545.37 is: 53,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,378.37 : 97,117.77 = 38,545.37 : x
  2. Step 2: Convert to fraction form
    70,378.37/97,117.77 = 38,545.37/x
  3. Step 3: Cross multiply
    70,378.37x = 97,117.77 × 38,545.37
  4. Step 4: Simplify right side
    70,378.37x = 3,743,439,699.91
  5. Step 5: Solve for x
    x = 3,743,439,699.91/70,378.37
  6. Step 6: Final answer
    x = 53,190.21

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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.