Home / 77,970.78-116,964.81-25,370.46

Finding the Fourth Proportional to 77,970.78, 116,964.81 and 25,370.46

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Solution

The fourth proportional to 77,970.78, 116,964.81 and 25,370.46 is: 38,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,970.78 : 116,964.81 = 25,370.46 : x
  2. Step 2: Convert to fraction form
    77,970.78/116,964.81 = 25,370.46/x
  3. Step 3: Cross multiply
    77,970.78x = 116,964.81 × 25,370.46
  4. Step 4: Simplify right side
    77,970.78x = 2,967,451,033.51
  5. Step 5: Solve for x
    x = 2,967,451,033.51/77,970.78
  6. Step 6: Final answer
    x = 38,058.50

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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.