Home / 84,047.18-115,983.68-45,807.18

Finding the Fourth Proportional to 84,047.18, 115,983.68 and 45,807.18

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Solution

The fourth proportional to 84,047.18, 115,983.68 and 45,807.18 is: 63,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,047.18 : 115,983.68 = 45,807.18 : x
  2. Step 2: Convert to fraction form
    84,047.18/115,983.68 = 45,807.18/x
  3. Step 3: Cross multiply
    84,047.18x = 115,983.68 × 45,807.18
  4. Step 4: Simplify right side
    84,047.18x = 5,312,885,077.79
  5. Step 5: Solve for x
    x = 5,312,885,077.79/84,047.18
  6. Step 6: Final answer
    x = 63,213.13

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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.