Home / 51,115-70,528.08-29,890.16

Finding the Fourth Proportional to 51,115, 70,528.08 and 29,890.16

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Solution

The fourth proportional to 51,115, 70,528.08 and 29,890.16 is: 41,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,115 : 70,528.08 = 29,890.16 : x
  2. Step 2: Convert to fraction form
    51,115/70,528.08 = 29,890.16/x
  3. Step 3: Cross multiply
    51,115x = 70,528.08 × 29,890.16
  4. Step 4: Simplify right side
    51,115x = 2,108,095,595.69
  5. Step 5: Solve for x
    x = 2,108,095,595.69/51,115
  6. Step 6: Final answer
    x = 41,242.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.