Home / 83,386.40-115,073.04-45,660.32

Finding the Fourth Proportional to 83,386.40, 115,073.04 and 45,660.32

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Solution

The fourth proportional to 83,386.40, 115,073.04 and 45,660.32 is: 63,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.40 : 115,073.04 = 45,660.32 : x
  2. Step 2: Convert to fraction form
    83,386.40/115,073.04 = 45,660.32/x
  3. Step 3: Cross multiply
    83,386.40x = 115,073.04 × 45,660.32
  4. Step 4: Simplify right side
    83,386.40x = 5,254,271,829.77
  5. Step 5: Solve for x
    x = 5,254,271,829.77/83,386.40
  6. Step 6: Final answer
    x = 63,011.14

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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.