Home / 97,001.78-133,849.40-56,722.10

Finding the Fourth Proportional to 97,001.78, 133,849.40 and 56,722.10

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Solution

The fourth proportional to 97,001.78, 133,849.40 and 56,722.10 is: 78,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,001.78 : 133,849.40 = 56,722.10 : x
  2. Step 2: Convert to fraction form
    97,001.78/133,849.40 = 56,722.10/x
  3. Step 3: Cross multiply
    97,001.78x = 133,849.40 × 56,722.10
  4. Step 4: Simplify right side
    97,001.78x = 7,592,219,051.74
  5. Step 5: Solve for x
    x = 7,592,219,051.74/97,001.78
  6. Step 6: Final answer
    x = 78,268.86

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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.