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Finding the Fourth Proportional to 70,379.51, 97,123.73 and 38,549.55

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Solution

The fourth proportional to 70,379.51, 97,123.73 and 38,549.55 is: 53,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.51 : 97,123.73 = 38,549.55 : x
  2. Step 2: Convert to fraction form
    70,379.51/97,123.73 = 38,549.55/x
  3. Step 3: Cross multiply
    70,379.51x = 97,123.73 × 38,549.55
  4. Step 4: Simplify right side
    70,379.51x = 3,744,075,763.07
  5. Step 5: Solve for x
    x = 3,744,075,763.07/70,379.51
  6. Step 6: Final answer
    x = 53,198.38

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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.