Home / 89,075.70-133,397.55-47,430.90

Finding the Fourth Proportional to 89,075.70, 133,397.55 and 47,430.90

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Solution

The fourth proportional to 89,075.70, 133,397.55 and 47,430.90 is: 71,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,075.70 : 133,397.55 = 47,430.90 : x
  2. Step 2: Convert to fraction form
    89,075.70/133,397.55 = 47,430.90/x
  3. Step 3: Cross multiply
    89,075.70x = 133,397.55 × 47,430.90
  4. Step 4: Simplify right side
    89,075.70x = 6,327,165,854.30
  5. Step 5: Solve for x
    x = 6,327,165,854.30/89,075.70
  6. Step 6: Final answer
    x = 71,031.33

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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.