Home / 84,985.58-127,478.23-40,477.34

Finding the Fourth Proportional to 84,985.58, 127,478.23 and 40,477.34

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Solution

The fourth proportional to 84,985.58, 127,478.23 and 40,477.34 is: 60,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,985.58 : 127,478.23 = 40,477.34 : x
  2. Step 2: Convert to fraction form
    84,985.58/127,478.23 = 40,477.34/x
  3. Step 3: Cross multiply
    84,985.58x = 127,478.23 × 40,477.34
  4. Step 4: Simplify right side
    84,985.58x = 5,159,979,658.31
  5. Step 5: Solve for x
    x = 5,159,979,658.31/84,985.58
  6. Step 6: Final answer
    x = 60,715.94

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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.