Home / 87,031.80-130,547.70-27,869.40

Finding the Fourth Proportional to 87,031.80, 130,547.70 and 27,869.40

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Solution

The fourth proportional to 87,031.80, 130,547.70 and 27,869.40 is: 41,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,031.80 : 130,547.70 = 27,869.40 : x
  2. Step 2: Convert to fraction form
    87,031.80/130,547.70 = 27,869.40/x
  3. Step 3: Cross multiply
    87,031.80x = 130,547.70 × 27,869.40
  4. Step 4: Simplify right side
    87,031.80x = 3,638,286,070.38
  5. Step 5: Solve for x
    x = 3,638,286,070.38/87,031.80
  6. Step 6: Final answer
    x = 41,804.10

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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.