Home / 46,715.94-64,419.21-30,780.18

Finding the Fourth Proportional to 46,715.94, 64,419.21 and 30,780.18

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Solution

The fourth proportional to 46,715.94, 64,419.21 and 30,780.18 is: 42,444.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,715.94 : 64,419.21 = 30,780.18 : x
  2. Step 2: Convert to fraction form
    46,715.94/64,419.21 = 30,780.18/x
  3. Step 3: Cross multiply
    46,715.94x = 64,419.21 × 30,780.18
  4. Step 4: Simplify right side
    46,715.94x = 1,982,834,879.26
  5. Step 5: Solve for x
    x = 1,982,834,879.26/46,715.94
  6. Step 6: Final answer
    x = 42,444.50

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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.