Home / 88,139.16-121,631.58-47,852.64

Finding the Fourth Proportional to 88,139.16, 121,631.58 and 47,852.64

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Solution

The fourth proportional to 88,139.16, 121,631.58 and 47,852.64 is: 66,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.16 : 121,631.58 = 47,852.64 : x
  2. Step 2: Convert to fraction form
    88,139.16/121,631.58 = 47,852.64/x
  3. Step 3: Cross multiply
    88,139.16x = 121,631.58 × 47,852.64
  4. Step 4: Simplify right side
    88,139.16x = 5,820,392,210.37
  5. Step 5: Solve for x
    x = 5,820,392,210.37/88,139.16
  6. Step 6: Final answer
    x = 66,036.39

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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.