Home / 64,870.13-89,444.09-45,753.05

Finding the Fourth Proportional to 64,870.13, 89,444.09 and 45,753.05

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Solution

The fourth proportional to 64,870.13, 89,444.09 and 45,753.05 is: 63,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,870.13 : 89,444.09 = 45,753.05 : x
  2. Step 2: Convert to fraction form
    64,870.13/89,444.09 = 45,753.05/x
  3. Step 3: Cross multiply
    64,870.13x = 89,444.09 × 45,753.05
  4. Step 4: Simplify right side
    64,870.13x = 4,092,339,245.99
  5. Step 5: Solve for x
    x = 4,092,339,245.99/64,870.13
  6. Step 6: Final answer
    x = 63,085.11

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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.