Home / 85,303.19-127,950.15-26,139.03

Finding the Fourth Proportional to 85,303.19, 127,950.15 and 26,139.03

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Solution

The fourth proportional to 85,303.19, 127,950.15 and 26,139.03 is: 39,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.19 : 127,950.15 = 26,139.03 : x
  2. Step 2: Convert to fraction form
    85,303.19/127,950.15 = 26,139.03/x
  3. Step 3: Cross multiply
    85,303.19x = 127,950.15 × 26,139.03
  4. Step 4: Simplify right side
    85,303.19x = 3,344,492,809.35
  5. Step 5: Solve for x
    x = 3,344,492,809.35/85,303.19
  6. Step 6: Final answer
    x = 39,207.13

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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.