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Finding the Fourth Proportional to 127,779.60, 191,742.30 and 48,950.40

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Solution

The fourth proportional to 127,779.60, 191,742.30 and 48,950.40 is: 73,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,779.60 : 191,742.30 = 48,950.40 : x
  2. Step 2: Convert to fraction form
    127,779.60/191,742.30 = 48,950.40/x
  3. Step 3: Cross multiply
    127,779.60x = 191,742.30 × 48,950.40
  4. Step 4: Simplify right side
    127,779.60x = 9,385,862,281.92
  5. Step 5: Solve for x
    x = 9,385,862,281.92/127,779.60
  6. Step 6: Final answer
    x = 73,453.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.