Home / 55,831.52-77,048.80-30,681.52

Finding the Fourth Proportional to 55,831.52, 77,048.80 and 30,681.52

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Solution

The fourth proportional to 55,831.52, 77,048.80 and 30,681.52 is: 42,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.52 : 77,048.80 = 30,681.52 : x
  2. Step 2: Convert to fraction form
    55,831.52/77,048.80 = 30,681.52/x
  3. Step 3: Cross multiply
    55,831.52x = 77,048.80 × 30,681.52
  4. Step 4: Simplify right side
    55,831.52x = 2,363,974,298.18
  5. Step 5: Solve for x
    x = 2,363,974,298.18/55,831.52
  6. Step 6: Final answer
    x = 42,341.21

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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.