Home / 89,783.40-123,901.38-48,947.28

Finding the Fourth Proportional to 89,783.40, 123,901.38 and 48,947.28

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Solution

The fourth proportional to 89,783.40, 123,901.38 and 48,947.28 is: 67,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,783.40 : 123,901.38 = 48,947.28 : x
  2. Step 2: Convert to fraction form
    89,783.40/123,901.38 = 48,947.28/x
  3. Step 3: Cross multiply
    89,783.40x = 123,901.38 × 48,947.28
  4. Step 4: Simplify right side
    89,783.40x = 6,064,635,539.25
  5. Step 5: Solve for x
    x = 6,064,635,539.25/89,783.40
  6. Step 6: Final answer
    x = 67,547.40

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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.