Home / 84,985.08-127,477.48-40,476.84

Finding the Fourth Proportional to 84,985.08, 127,477.48 and 40,476.84

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Solution

The fourth proportional to 84,985.08, 127,477.48 and 40,476.84 is: 60,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,985.08 : 127,477.48 = 40,476.84 : x
  2. Step 2: Convert to fraction form
    84,985.08/127,477.48 = 40,476.84/x
  3. Step 3: Cross multiply
    84,985.08x = 127,477.48 × 40,476.84
  4. Step 4: Simplify right side
    84,985.08x = 5,159,885,561.56
  5. Step 5: Solve for x
    x = 5,159,885,561.56/84,985.08
  6. Step 6: Final answer
    x = 60,715.19

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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.