Home / 65,018.28-89,725.20-35,210.28

Finding the Fourth Proportional to 65,018.28, 89,725.20 and 35,210.28

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Solution

The fourth proportional to 65,018.28, 89,725.20 and 35,210.28 is: 48,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,018.28 : 89,725.20 = 35,210.28 : x
  2. Step 2: Convert to fraction form
    65,018.28/89,725.20 = 35,210.28/x
  3. Step 3: Cross multiply
    65,018.28x = 89,725.20 × 35,210.28
  4. Step 4: Simplify right side
    65,018.28x = 3,159,249,415.06
  5. Step 5: Solve for x
    x = 3,159,249,415.06/65,018.28
  6. Step 6: Final answer
    x = 48,590.17

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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.