Home / 90,870.24-136,333.16-46,528.36

Finding the Fourth Proportional to 90,870.24, 136,333.16 and 46,528.36

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Solution

The fourth proportional to 90,870.24, 136,333.16 and 46,528.36 is: 69,806.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870.24 : 136,333.16 = 46,528.36 : x
  2. Step 2: Convert to fraction form
    90,870.24/136,333.16 = 46,528.36/x
  3. Step 3: Cross multiply
    90,870.24x = 136,333.16 × 46,528.36
  4. Step 4: Simplify right side
    90,870.24x = 6,343,358,348.42
  5. Step 5: Solve for x
    x = 6,343,358,348.42/90,870.24
  6. Step 6: Final answer
    x = 69,806.77

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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.