Home / 90,904.65-136,356.80-40,926.35

Finding the Fourth Proportional to 90,904.65, 136,356.80 and 40,926.35

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Solution

The fourth proportional to 90,904.65, 136,356.80 and 40,926.35 is: 61,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,904.65 : 136,356.80 = 40,926.35 : x
  2. Step 2: Convert to fraction form
    90,904.65/136,356.80 = 40,926.35/x
  3. Step 3: Cross multiply
    90,904.65x = 136,356.80 × 40,926.35
  4. Step 4: Simplify right side
    90,904.65x = 5,580,585,235.26
  5. Step 5: Solve for x
    x = 5,580,585,235.26/90,904.65
  6. Step 6: Final answer
    x = 61,389.44

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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.