Home / 145,390.40-218,029.44-56,632.76

Finding the Fourth Proportional to 145,390.40, 218,029.44 and 56,632.76

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Solution

The fourth proportional to 145,390.40, 218,029.44 and 56,632.76 is: 84,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,390.40 : 218,029.44 = 56,632.76 : x
  2. Step 2: Convert to fraction form
    145,390.40/218,029.44 = 56,632.76/x
  3. Step 3: Cross multiply
    145,390.40x = 218,029.44 × 56,632.76
  4. Step 4: Simplify right side
    145,390.40x = 12,347,608,948.45
  5. Step 5: Solve for x
    x = 12,347,608,948.45/145,390.40
  6. Step 6: Final answer
    x = 84,927.26

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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.