Home / 77,070.12-106,358.76-43,077.60

Finding the Fourth Proportional to 77,070.12, 106,358.76 and 43,077.60

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Solution

The fourth proportional to 77,070.12, 106,358.76 and 43,077.60 is: 59,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,070.12 : 106,358.76 = 43,077.60 : x
  2. Step 2: Convert to fraction form
    77,070.12/106,358.76 = 43,077.60/x
  3. Step 3: Cross multiply
    77,070.12x = 106,358.76 × 43,077.60
  4. Step 4: Simplify right side
    77,070.12x = 4,581,680,119.78
  5. Step 5: Solve for x
    x = 4,581,680,119.78/77,070.12
  6. Step 6: Final answer
    x = 59,448.20

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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.