Home / 74,666.04-103,038.90-40,676.40

Finding the Fourth Proportional to 74,666.04, 103,038.90 and 40,676.40

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Solution

The fourth proportional to 74,666.04, 103,038.90 and 40,676.40 is: 56,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,666.04 : 103,038.90 = 40,676.40 : x
  2. Step 2: Convert to fraction form
    74,666.04/103,038.90 = 40,676.40/x
  3. Step 3: Cross multiply
    74,666.04x = 103,038.90 × 40,676.40
  4. Step 4: Simplify right side
    74,666.04x = 4,191,251,511.96
  5. Step 5: Solve for x
    x = 4,191,251,511.96/74,666.04
  6. Step 6: Final answer
    x = 56,133.30

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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.