Home / 72,301.44-99,779.79-45,434.04

Finding the Fourth Proportional to 72,301.44, 99,779.79 and 45,434.04

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Solution

The fourth proportional to 72,301.44, 99,779.79 and 45,434.04 is: 62,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301.44 : 99,779.79 = 45,434.04 : x
  2. Step 2: Convert to fraction form
    72,301.44/99,779.79 = 45,434.04/x
  3. Step 3: Cross multiply
    72,301.44x = 99,779.79 × 45,434.04
  4. Step 4: Simplify right side
    72,301.44x = 4,533,398,970.05
  5. Step 5: Solve for x
    x = 4,533,398,970.05/72,301.44
  6. Step 6: Final answer
    x = 62,701.36

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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.