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Finding the Fourth Proportional to 70,317.65, 97,034.64 and 38,480.40

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Solution

The fourth proportional to 70,317.65, 97,034.64 and 38,480.40 is: 53,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,317.65 : 97,034.64 = 38,480.40 : x
  2. Step 2: Convert to fraction form
    70,317.65/97,034.64 = 38,480.40/x
  3. Step 3: Cross multiply
    70,317.65x = 97,034.64 × 38,480.40
  4. Step 4: Simplify right side
    70,317.65x = 3,733,931,616.75
  5. Step 5: Solve for x
    x = 3,733,931,616.75/70,317.65
  6. Step 6: Final answer
    x = 53,100.91

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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.