Home / 98,779.09-136,315.49-53,457.06

Finding the Fourth Proportional to 98,779.09, 136,315.49 and 53,457.06

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Solution

The fourth proportional to 98,779.09, 136,315.49 and 53,457.06 is: 73,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,779.09 : 136,315.49 = 53,457.06 : x
  2. Step 2: Convert to fraction form
    98,779.09/136,315.49 = 53,457.06/x
  3. Step 3: Cross multiply
    98,779.09x = 136,315.49 × 53,457.06
  4. Step 4: Simplify right side
    98,779.09x = 7,287,025,489.07
  5. Step 5: Solve for x
    x = 7,287,025,489.07/98,779.09
  6. Step 6: Final answer
    x = 73,770.93

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1.5x scale

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.