Home / 98,779.10-136,314.90-53,457.17

Finding the Fourth Proportional to 98,779.10, 136,314.90 and 53,457.17

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Solution

The fourth proportional to 98,779.10, 136,314.90 and 53,457.17 is: 73,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,779.10 : 136,314.90 = 53,457.17 : x
  2. Step 2: Convert to fraction form
    98,779.10/136,314.90 = 53,457.17/x
  3. Step 3: Cross multiply
    98,779.10x = 136,314.90 × 53,457.17
  4. Step 4: Simplify right side
    98,779.10x = 7,287,008,101.26
  5. Step 5: Solve for x
    x = 7,287,008,101.26/98,779.10
  6. Step 6: Final answer
    x = 73,770.75

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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.