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Finding the Fourth Proportional to 70,646.09, 97,491.53 and 38,814.91

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Solution

The fourth proportional to 70,646.09, 97,491.53 and 38,814.91 is: 53,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,646.09 : 97,491.53 = 38,814.91 : x
  2. Step 2: Convert to fraction form
    70,646.09/97,491.53 = 38,814.91/x
  3. Step 3: Cross multiply
    70,646.09x = 97,491.53 × 38,814.91
  4. Step 4: Simplify right side
    70,646.09x = 3,784,124,768.64
  5. Step 5: Solve for x
    x = 3,784,124,768.64/70,646.09
  6. Step 6: Final answer
    x = 53,564.53

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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.