Home / 87,281.08-130,831.98-49,764.40

Finding the Fourth Proportional to 87,281.08, 130,831.98 and 49,764.40

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Solution

The fourth proportional to 87,281.08, 130,831.98 and 49,764.40 is: 74,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.08 : 130,831.98 = 49,764.40 : x
  2. Step 2: Convert to fraction form
    87,281.08/130,831.98 = 49,764.40/x
  3. Step 3: Cross multiply
    87,281.08x = 130,831.98 × 49,764.40
  4. Step 4: Simplify right side
    87,281.08x = 6,510,774,985.51
  5. Step 5: Solve for x
    x = 6,510,774,985.51/87,281.08
  6. Step 6: Final answer
    x = 74,595.49

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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.