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Finding the Fourth Proportional to 56,346, 84,487.40 and 38,596.70

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Solution

The fourth proportional to 56,346, 84,487.40 and 38,596.70 is: 57,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,346 : 84,487.40 = 38,596.70 : x
  2. Step 2: Convert to fraction form
    56,346/84,487.40 = 38,596.70/x
  3. Step 3: Cross multiply
    56,346x = 84,487.40 × 38,596.70
  4. Step 4: Simplify right side
    56,346x = 3,260,934,831.58
  5. Step 5: Solve for x
    x = 3,260,934,831.58/56,346
  6. Step 6: Final answer
    x = 57,873.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.