Home / 77,964.36-107,590.95-42,154.36

Finding the Fourth Proportional to 77,964.36, 107,590.95 and 42,154.36

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Solution

The fourth proportional to 77,964.36, 107,590.95 and 42,154.36 is: 58,173.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.36 : 107,590.95 = 42,154.36 : x
  2. Step 2: Convert to fraction form
    77,964.36/107,590.95 = 42,154.36/x
  3. Step 3: Cross multiply
    77,964.36x = 107,590.95 × 42,154.36
  4. Step 4: Simplify right side
    77,964.36x = 4,535,427,370.06
  5. Step 5: Solve for x
    x = 4,535,427,370.06/77,964.36
  6. Step 6: Final answer
    x = 58,173.09

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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.