Home / 83,628.95-115,407.47-45,389.26

Finding the Fourth Proportional to 83,628.95, 115,407.47 and 45,389.26

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Solution

The fourth proportional to 83,628.95, 115,407.47 and 45,389.26 is: 62,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.95 : 115,407.47 = 45,389.26 : x
  2. Step 2: Convert to fraction form
    83,628.95/115,407.47 = 45,389.26/x
  3. Step 3: Cross multiply
    83,628.95x = 115,407.47 × 45,389.26
  4. Step 4: Simplify right side
    83,628.95x = 5,238,258,857.79
  5. Step 5: Solve for x
    x = 5,238,258,857.79/83,628.95
  6. Step 6: Final answer
    x = 62,636.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.