Home / 42,718.07-63,638.54-40,799.00

Finding the Fourth Proportional to 42,718.07, 63,638.54 and 40,799.00

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Solution

The fourth proportional to 42,718.07, 63,638.54 and 40,799.00 is: 60,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,718.07 : 63,638.54 = 40,799.00 : x
  2. Step 2: Convert to fraction form
    42,718.07/63,638.54 = 40,799.00/x
  3. Step 3: Cross multiply
    42,718.07x = 63,638.54 × 40,799.00
  4. Step 4: Simplify right side
    42,718.07x = 2,596,388,271.27
  5. Step 5: Solve for x
    x = 2,596,388,271.27/42,718.07
  6. Step 6: Final answer
    x = 60,779.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.