Home / 98,779.10-136,315.15-53,457.08

Finding the Fourth Proportional to 98,779.10, 136,315.15 and 53,457.08

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Solution

The fourth proportional to 98,779.10, 136,315.15 and 53,457.08 is: 73,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,779.10 : 136,315.15 = 53,457.08 : x
  2. Step 2: Convert to fraction form
    98,779.10/136,315.15 = 53,457.08/x
  3. Step 3: Cross multiply
    98,779.10x = 136,315.15 × 53,457.08
  4. Step 4: Simplify right side
    98,779.10x = 7,287,010,131.01
  5. Step 5: Solve for x
    x = 7,287,010,131.01/98,779.10
  6. Step 6: Final answer
    x = 73,770.77

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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.