Home / 77,417.26-116,126.08-21,258.16

Finding the Fourth Proportional to 77,417.26, 116,126.08 and 21,258.16

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Solution

The fourth proportional to 77,417.26, 116,126.08 and 21,258.16 is: 31,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,417.26 : 116,126.08 = 21,258.16 : x
  2. Step 2: Convert to fraction form
    77,417.26/116,126.08 = 21,258.16/x
  3. Step 3: Cross multiply
    77,417.26x = 116,126.08 × 21,258.16
  4. Step 4: Simplify right side
    77,417.26x = 2,468,626,788.81
  5. Step 5: Solve for x
    x = 2,468,626,788.81/77,417.26
  6. Step 6: Final answer
    x = 31,887.29

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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.