Home / 101,779.04-140,457.33-56,455.55

Finding the Fourth Proportional to 101,779.04, 140,457.33 and 56,455.55

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Solution

The fourth proportional to 101,779.04, 140,457.33 and 56,455.55 is: 77,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,779.04 : 140,457.33 = 56,455.55 : x
  2. Step 2: Convert to fraction form
    101,779.04/140,457.33 = 56,455.55/x
  3. Step 3: Cross multiply
    101,779.04x = 140,457.33 × 56,455.55
  4. Step 4: Simplify right side
    101,779.04x = 7,929,595,641.11
  5. Step 5: Solve for x
    x = 7,929,595,641.11/101,779.04
  6. Step 6: Final answer
    x = 77,909.91

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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.