Home / 56,903.30-78,526.55-31,409.67

Finding the Fourth Proportional to 56,903.30, 78,526.55 and 31,409.67

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Solution

The fourth proportional to 56,903.30, 78,526.55 and 31,409.67 is: 43,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,903.30 : 78,526.55 = 31,409.67 : x
  2. Step 2: Convert to fraction form
    56,903.30/78,526.55 = 31,409.67/x
  3. Step 3: Cross multiply
    56,903.30x = 78,526.55 × 31,409.67
  4. Step 4: Simplify right side
    56,903.30x = 2,466,492,864.69
  5. Step 5: Solve for x
    x = 2,466,492,864.69/56,903.30
  6. Step 6: Final answer
    x = 43,345.34

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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.