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Finding the Fourth Proportional to 70,530.85, 97,332.69 and 38,699.99

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Solution

The fourth proportional to 70,530.85, 97,332.69 and 38,699.99 is: 53,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.85 : 97,332.69 = 38,699.99 : x
  2. Step 2: Convert to fraction form
    70,530.85/97,332.69 = 38,699.99/x
  3. Step 3: Cross multiply
    70,530.85x = 97,332.69 × 38,699.99
  4. Step 4: Simplify right side
    70,530.85x = 3,766,774,129.67
  5. Step 5: Solve for x
    x = 3,766,774,129.67/70,530.85
  6. Step 6: Final answer
    x = 53,406.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.