Home / 85,386.06-128,082.75-26,224.08

Finding the Fourth Proportional to 85,386.06, 128,082.75 and 26,224.08

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Solution

The fourth proportional to 85,386.06, 128,082.75 and 26,224.08 is: 39,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,386.06 : 128,082.75 = 26,224.08 : x
  2. Step 2: Convert to fraction form
    85,386.06/128,082.75 = 26,224.08/x
  3. Step 3: Cross multiply
    85,386.06x = 128,082.75 × 26,224.08
  4. Step 4: Simplify right side
    85,386.06x = 3,358,852,282.62
  5. Step 5: Solve for x
    x = 3,358,852,282.62/85,386.06
  6. Step 6: Final answer
    x = 39,337.24

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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.