Home / 74,430.24-102,714.72-40,896

Finding the Fourth Proportional to 74,430.24, 102,714.72 and 40,896

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Solution

The fourth proportional to 74,430.24, 102,714.72 and 40,896 is: 56,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.24 : 102,714.72 = 40,896 : x
  2. Step 2: Convert to fraction form
    74,430.24/102,714.72 = 40,896/x
  3. Step 3: Cross multiply
    74,430.24x = 102,714.72 × 40,896
  4. Step 4: Simplify right side
    74,430.24x = 4,200,621,189.12
  5. Step 5: Solve for x
    x = 4,200,621,189.12/74,430.24
  6. Step 6: Final answer
    x = 56,437.02

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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.