Home / 58,140.81-80,258.70-39,303.45

Finding the Fourth Proportional to 58,140.81, 80,258.70 and 39,303.45

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Solution

The fourth proportional to 58,140.81, 80,258.70 and 39,303.45 is: 54,255.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,140.81 : 80,258.70 = 39,303.45 : x
  2. Step 2: Convert to fraction form
    58,140.81/80,258.70 = 39,303.45/x
  3. Step 3: Cross multiply
    58,140.81x = 80,258.70 × 39,303.45
  4. Step 4: Simplify right side
    58,140.81x = 3,154,443,802.52
  5. Step 5: Solve for x
    x = 3,154,443,802.52/58,140.81
  6. Step 6: Final answer
    x = 54,255.24

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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.