Home / 104,779.30-144,588.02-57,031.62

Finding the Fourth Proportional to 104,779.30, 144,588.02 and 57,031.62

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Solution

The fourth proportional to 104,779.30, 144,588.02 and 57,031.62 is: 78,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,779.30 : 144,588.02 = 57,031.62 : x
  2. Step 2: Convert to fraction form
    104,779.30/144,588.02 = 57,031.62/x
  3. Step 3: Cross multiply
    104,779.30x = 144,588.02 × 57,031.62
  4. Step 4: Simplify right side
    104,779.30x = 8,246,089,013.19
  5. Step 5: Solve for x
    x = 8,246,089,013.19/104,779.30
  6. Step 6: Final answer
    x = 78,699.60

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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.