Home / 90,857.47-136,314.12-46,515.35

Finding the Fourth Proportional to 90,857.47, 136,314.12 and 46,515.35

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Solution

The fourth proportional to 90,857.47, 136,314.12 and 46,515.35 is: 69,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,857.47 : 136,314.12 = 46,515.35 : x
  2. Step 2: Convert to fraction form
    90,857.47/136,314.12 = 46,515.35/x
  3. Step 3: Cross multiply
    90,857.47x = 136,314.12 × 46,515.35
  4. Step 4: Simplify right side
    90,857.47x = 6,340,699,001.74
  5. Step 5: Solve for x
    x = 6,340,699,001.74/90,857.47
  6. Step 6: Final answer
    x = 69,787.32

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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.