Home / 286,382.04-429,539.40-76,036.20

Finding the Fourth Proportional to 286,382.04, 429,539.40 and 76,036.20

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Solution

The fourth proportional to 286,382.04, 429,539.40 and 76,036.20 is: 114,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,382.04 : 429,539.40 = 76,036.20 : x
  2. Step 2: Convert to fraction form
    286,382.04/429,539.40 = 76,036.20/x
  3. Step 3: Cross multiply
    286,382.04x = 429,539.40 × 76,036.20
  4. Step 4: Simplify right side
    286,382.04x = 32,660,543,726.28
  5. Step 5: Solve for x
    x = 32,660,543,726.28/286,382.04
  6. Step 6: Final answer
    x = 114,045.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.