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Finding the Fourth Proportional to 53,970.71, 74,479.90 and 30,098.89

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Solution

The fourth proportional to 53,970.71, 74,479.90 and 30,098.89 is: 41,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.71 : 74,479.90 = 30,098.89 : x
  2. Step 2: Convert to fraction form
    53,970.71/74,479.90 = 30,098.89/x
  3. Step 3: Cross multiply
    53,970.71x = 74,479.90 × 30,098.89
  4. Step 4: Simplify right side
    53,970.71x = 2,241,762,055.86
  5. Step 5: Solve for x
    x = 2,241,762,055.86/53,970.71
  6. Step 6: Final answer
    x = 41,536.65

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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.