Home / 86,927.10-130,477.05-42,603.90

Finding the Fourth Proportional to 86,927.10, 130,477.05 and 42,603.90

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Solution

The fourth proportional to 86,927.10, 130,477.05 and 42,603.90 is: 63,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,927.10 : 130,477.05 = 42,603.90 : x
  2. Step 2: Convert to fraction form
    86,927.10/130,477.05 = 42,603.90/x
  3. Step 3: Cross multiply
    86,927.10x = 130,477.05 × 42,603.90
  4. Step 4: Simplify right side
    86,927.10x = 5,558,831,190.50
  5. Step 5: Solve for x
    x = 5,558,831,190.50/86,927.10
  6. Step 6: Final answer
    x = 63,948.20

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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.