Home / 72,482.36-99,983.18-45,582.20

Finding the Fourth Proportional to 72,482.36, 99,983.18 and 45,582.20

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Solution

The fourth proportional to 72,482.36, 99,983.18 and 45,582.20 is: 62,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482.36 : 99,983.18 = 45,582.20 : x
  2. Step 2: Convert to fraction form
    72,482.36/99,983.18 = 45,582.20/x
  3. Step 3: Cross multiply
    72,482.36x = 99,983.18 × 45,582.20
  4. Step 4: Simplify right side
    72,482.36x = 4,557,453,307.40
  5. Step 5: Solve for x
    x = 4,557,453,307.40/72,482.36
  6. Step 6: Final answer
    x = 62,876.72

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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.