Home / 83,138.08-114,730.40-45,412.32

Finding the Fourth Proportional to 83,138.08, 114,730.40 and 45,412.32

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Solution

The fourth proportional to 83,138.08, 114,730.40 and 45,412.32 is: 62,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,138.08 : 114,730.40 = 45,412.32 : x
  2. Step 2: Convert to fraction form
    83,138.08/114,730.40 = 45,412.32/x
  3. Step 3: Cross multiply
    83,138.08x = 114,730.40 × 45,412.32
  4. Step 4: Simplify right side
    83,138.08x = 5,210,173,638.53
  5. Step 5: Solve for x
    x = 5,210,173,638.53/83,138.08
  6. Step 6: Final answer
    x = 62,668.92

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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.