Home / 81,740.22-112,803.48-45,928.10

Finding the Fourth Proportional to 81,740.22, 112,803.48 and 45,928.10

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Solution

The fourth proportional to 81,740.22, 112,803.48 and 45,928.10 is: 63,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,740.22 : 112,803.48 = 45,928.10 : x
  2. Step 2: Convert to fraction form
    81,740.22/112,803.48 = 45,928.10/x
  3. Step 3: Cross multiply
    81,740.22x = 112,803.48 × 45,928.10
  4. Step 4: Simplify right side
    81,740.22x = 5,180,849,509.79
  5. Step 5: Solve for x
    x = 5,180,849,509.79/81,740.22
  6. Step 6: Final answer
    x = 63,381.89

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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.