Home / 51,774.17-77,547.41-42,787.65

Finding the Fourth Proportional to 51,774.17, 77,547.41 and 42,787.65

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Solution

The fourth proportional to 51,774.17, 77,547.41 and 42,787.65 is: 64,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,774.17 : 77,547.41 = 42,787.65 : x
  2. Step 2: Convert to fraction form
    51,774.17/77,547.41 = 42,787.65/x
  3. Step 3: Cross multiply
    51,774.17x = 77,547.41 × 42,787.65
  4. Step 4: Simplify right side
    51,774.17x = 3,318,071,437.49
  5. Step 5: Solve for x
    x = 3,318,071,437.49/51,774.17
  6. Step 6: Final answer
    x = 64,087.39

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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.