Home / 79,430.48-119,140.04-46,129.76

Finding the Fourth Proportional to 79,430.48, 119,140.04 and 46,129.76

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Solution

The fourth proportional to 79,430.48, 119,140.04 and 46,129.76 is: 69,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430.48 : 119,140.04 = 46,129.76 : x
  2. Step 2: Convert to fraction form
    79,430.48/119,140.04 = 46,129.76/x
  3. Step 3: Cross multiply
    79,430.48x = 119,140.04 × 46,129.76
  4. Step 4: Simplify right side
    79,430.48x = 5,495,901,451.59
  5. Step 5: Solve for x
    x = 5,495,901,451.59/79,430.48
  6. Step 6: Final answer
    x = 69,191.34

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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.