Home / 90,877.23-136,337.40-28,547.73

Finding the Fourth Proportional to 90,877.23, 136,337.40 and 28,547.73

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Solution

The fourth proportional to 90,877.23, 136,337.40 and 28,547.73 is: 42,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,877.23 : 136,337.40 = 28,547.73 : x
  2. Step 2: Convert to fraction form
    90,877.23/136,337.40 = 28,547.73/x
  3. Step 3: Cross multiply
    90,877.23x = 136,337.40 × 28,547.73
  4. Step 4: Simplify right side
    90,877.23x = 3,892,123,284.10
  5. Step 5: Solve for x
    x = 3,892,123,284.10/90,877.23
  6. Step 6: Final answer
    x = 42,828.37

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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.