Home / 84,738.71-127,128.59-25,570.77

Finding the Fourth Proportional to 84,738.71, 127,128.59 and 25,570.77

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Solution

The fourth proportional to 84,738.71, 127,128.59 and 25,570.77 is: 38,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,738.71 : 127,128.59 = 25,570.77 : x
  2. Step 2: Convert to fraction form
    84,738.71/127,128.59 = 25,570.77/x
  3. Step 3: Cross multiply
    84,738.71x = 127,128.59 × 25,570.77
  4. Step 4: Simplify right side
    84,738.71x = 3,250,775,807.46
  5. Step 5: Solve for x
    x = 3,250,775,807.46/84,738.71
  6. Step 6: Final answer
    x = 38,362.35

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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.