Home / 84,864.10-127,279.95-25,701.70

Finding the Fourth Proportional to 84,864.10, 127,279.95 and 25,701.70

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Solution

The fourth proportional to 84,864.10, 127,279.95 and 25,701.70 is: 38,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,864.10 : 127,279.95 = 25,701.70 : x
  2. Step 2: Convert to fraction form
    84,864.10/127,279.95 = 25,701.70/x
  3. Step 3: Cross multiply
    84,864.10x = 127,279.95 × 25,701.70
  4. Step 4: Simplify right side
    84,864.10x = 3,271,311,090.92
  5. Step 5: Solve for x
    x = 3,271,311,090.92/84,864.10
  6. Step 6: Final answer
    x = 38,547.64

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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.