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Finding the Fourth Proportional to 70,363.76, 105,536.93 and 25,989.53

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Solution

The fourth proportional to 70,363.76, 105,536.93 and 25,989.53 is: 38,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,363.76 : 105,536.93 = 25,989.53 : x
  2. Step 2: Convert to fraction form
    70,363.76/105,536.93 = 25,989.53/x
  3. Step 3: Cross multiply
    70,363.76x = 105,536.93 × 25,989.53
  4. Step 4: Simplify right side
    70,363.76x = 2,742,854,550.71
  5. Step 5: Solve for x
    x = 2,742,854,550.71/70,363.76
  6. Step 6: Final answer
    x = 38,981.07

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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.