Home / 91,143.42-136,802.70-44,429.10

Finding the Fourth Proportional to 91,143.42, 136,802.70 and 44,429.10

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Solution

The fourth proportional to 91,143.42, 136,802.70 and 44,429.10 is: 66,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,143.42 : 136,802.70 = 44,429.10 : x
  2. Step 2: Convert to fraction form
    91,143.42/136,802.70 = 44,429.10/x
  3. Step 3: Cross multiply
    91,143.42x = 136,802.70 × 44,429.10
  4. Step 4: Simplify right side
    91,143.42x = 6,078,020,838.57
  5. Step 5: Solve for x
    x = 6,078,020,838.57/91,143.42
  6. Step 6: Final answer
    x = 66,686.34

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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.