Home / 86,948.96-130,434.57-26,981.42

Finding the Fourth Proportional to 86,948.96, 130,434.57 and 26,981.42

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Solution

The fourth proportional to 86,948.96, 130,434.57 and 26,981.42 is: 40,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.96 : 130,434.57 = 26,981.42 : x
  2. Step 2: Convert to fraction form
    86,948.96/130,434.57 = 26,981.42/x
  3. Step 3: Cross multiply
    86,948.96x = 130,434.57 × 26,981.42
  4. Step 4: Simplify right side
    86,948.96x = 3,519,309,263.52
  5. Step 5: Solve for x
    x = 3,519,309,263.52/86,948.96
  6. Step 6: Final answer
    x = 40,475.58

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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.