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Finding the Fourth Proportional to 85,950.58, 128,932.08 and 35,980.34

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Solution

The fourth proportional to 85,950.58, 128,932.08 and 35,980.34 is: 53,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.58 : 128,932.08 = 35,980.34 : x
  2. Step 2: Convert to fraction form
    85,950.58/128,932.08 = 35,980.34/x
  3. Step 3: Cross multiply
    85,950.58x = 128,932.08 × 35,980.34
  4. Step 4: Simplify right side
    85,950.58x = 4,639,020,075.31
  5. Step 5: Solve for x
    x = 4,639,020,075.31/85,950.58
  6. Step 6: Final answer
    x = 53,973.11

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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.