Home / 145,571.04-218,360.16-40,389.84

Finding the Fourth Proportional to 145,571.04, 218,360.16 and 40,389.84

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Solution

The fourth proportional to 145,571.04, 218,360.16 and 40,389.84 is: 60,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,571.04 : 218,360.16 = 40,389.84 : x
  2. Step 2: Convert to fraction form
    145,571.04/218,360.16 = 40,389.84/x
  3. Step 3: Cross multiply
    145,571.04x = 218,360.16 × 40,389.84
  4. Step 4: Simplify right side
    145,571.04x = 8,819,531,924.77
  5. Step 5: Solve for x
    x = 8,819,531,924.77/145,571.04
  6. Step 6: Final answer
    x = 60,585.76

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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.