Home / 58,130.40-87,122.34-31,475.28

Finding the Fourth Proportional to 58,130.40, 87,122.34 and 31,475.28

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Solution

The fourth proportional to 58,130.40, 87,122.34 and 31,475.28 is: 47,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,130.40 : 87,122.34 = 31,475.28 : x
  2. Step 2: Convert to fraction form
    58,130.40/87,122.34 = 31,475.28/x
  3. Step 3: Cross multiply
    58,130.40x = 87,122.34 × 31,475.28
  4. Step 4: Simplify right side
    58,130.40x = 2,742,200,045.76
  5. Step 5: Solve for x
    x = 2,742,200,045.76/58,130.40
  6. Step 6: Final answer
    x = 47,173.25

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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.